Home / 143,769,121.20-215,653,681.80-118,259,953.20

Finding the Fourth Proportional to 143,769,121.20, 215,653,681.80 and 118,259,953.20

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Solution

The fourth proportional to 143,769,121.20, 215,653,681.80 and 118,259,953.20 is: 177,389,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,769,121.20 : 215,653,681.80 = 118,259,953.20 : x
  2. Step 2: Convert to fraction form
    143,769,121.20/215,653,681.80 = 118,259,953.20/x
  3. Step 3: Cross multiply
    143,769,121.20x = 215,653,681.80 × 118,259,953.20
  4. Step 4: Simplify right side
    143,769,121.20x = 25,503,194,317,075,692
  5. Step 5: Solve for x
    x = 25,503,194,317,075,692/143,769,121.20
  6. Step 6: Final answer
    x = 177,389,929.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.