Home / 103,729.90-155,236.45-62,206.70

Finding the Fourth Proportional to 103,729.90, 155,236.45 and 62,206.70

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Solution

The fourth proportional to 103,729.90, 155,236.45 and 62,206.70 is: 93,095.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,729.90 : 155,236.45 = 62,206.70 : x
  2. Step 2: Convert to fraction form
    103,729.90/155,236.45 = 62,206.70/x
  3. Step 3: Cross multiply
    103,729.90x = 155,236.45 × 62,206.70
  4. Step 4: Simplify right side
    103,729.90x = 9,656,747,274.22
  5. Step 5: Solve for x
    x = 9,656,747,274.22/103,729.90
  6. Step 6: Final answer
    x = 93,095.12

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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.