Home / 102,549.62-141,518.50-56,609.28

Finding the Fourth Proportional to 102,549.62, 141,518.50 and 56,609.28

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Solution

The fourth proportional to 102,549.62, 141,518.50 and 56,609.28 is: 78,120.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,549.62 : 141,518.50 = 56,609.28 : x
  2. Step 2: Convert to fraction form
    102,549.62/141,518.50 = 56,609.28/x
  3. Step 3: Cross multiply
    102,549.62x = 141,518.50 × 56,609.28
  4. Step 4: Simplify right side
    102,549.62x = 8,011,260,391.68
  5. Step 5: Solve for x
    x = 8,011,260,391.68/102,549.62
  6. Step 6: Final answer
    x = 78,120.82

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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.