Home / 144,172.74-216,259.13-42,972.36

Finding the Fourth Proportional to 144,172.74, 216,259.13 and 42,972.36

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Solution

The fourth proportional to 144,172.74, 216,259.13 and 42,972.36 is: 64,458.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,172.74 : 216,259.13 = 42,972.36 : x
  2. Step 2: Convert to fraction form
    144,172.74/216,259.13 = 42,972.36/x
  3. Step 3: Cross multiply
    144,172.74x = 216,259.13 × 42,972.36
  4. Step 4: Simplify right side
    144,172.74x = 9,293,164,972.79
  5. Step 5: Solve for x
    x = 9,293,164,972.79/144,172.74
  6. Step 6: Final answer
    x = 64,458.54

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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.