Home / 103,207.80-142,439.94-60,770.28

Finding the Fourth Proportional to 103,207.80, 142,439.94 and 60,770.28

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Solution

The fourth proportional to 103,207.80, 142,439.94 and 60,770.28 is: 83,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,207.80 : 142,439.94 = 60,770.28 : x
  2. Step 2: Convert to fraction form
    103,207.80/142,439.94 = 60,770.28/x
  3. Step 3: Cross multiply
    103,207.80x = 142,439.94 × 60,770.28
  4. Step 4: Simplify right side
    103,207.80x = 8,656,115,036.98
  5. Step 5: Solve for x
    x = 8,656,115,036.98/103,207.80
  6. Step 6: Final answer
    x = 83,870.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.