Home / 103,761.40-155,283.70-62,238.20

Finding the Fourth Proportional to 103,761.40, 155,283.70 and 62,238.20

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Solution

The fourth proportional to 103,761.40, 155,283.70 and 62,238.20 is: 93,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,761.40 : 155,283.70 = 62,238.20 : x
  2. Step 2: Convert to fraction form
    103,761.40/155,283.70 = 62,238.20/x
  3. Step 3: Cross multiply
    103,761.40x = 155,283.70 × 62,238.20
  4. Step 4: Simplify right side
    103,761.40x = 9,664,577,977.34
  5. Step 5: Solve for x
    x = 9,664,577,977.34/103,761.40
  6. Step 6: Final answer
    x = 93,142.32

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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.