Home / 145,490.82-218,289.53-61,272.18

Finding the Fourth Proportional to 145,490.82, 218,289.53 and 61,272.18

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Solution

The fourth proportional to 145,490.82, 218,289.53 and 61,272.18 is: 91,930.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,490.82 : 218,289.53 = 61,272.18 : x
  2. Step 2: Convert to fraction form
    145,490.82/218,289.53 = 61,272.18/x
  3. Step 3: Cross multiply
    145,490.82x = 218,289.53 × 61,272.18
  4. Step 4: Simplify right side
    145,490.82x = 13,375,075,527.46
  5. Step 5: Solve for x
    x = 13,375,075,527.46/145,490.82
  6. Step 6: Final answer
    x = 91,930.72

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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.