Home / 103,253.50-142,539.89-69,249.55

Finding the Fourth Proportional to 103,253.50, 142,539.89 and 69,249.55

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Solution

The fourth proportional to 103,253.50, 142,539.89 and 69,249.55 is: 95,597.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,253.50 : 142,539.89 = 69,249.55 : x
  2. Step 2: Convert to fraction form
    103,253.50/142,539.89 = 69,249.55/x
  3. Step 3: Cross multiply
    103,253.50x = 142,539.89 × 69,249.55
  4. Step 4: Simplify right side
    103,253.50x = 9,870,822,893.30
  5. Step 5: Solve for x
    x = 9,870,822,893.30/103,253.50
  6. Step 6: Final answer
    x = 95,597.95

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1.5x scale

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.