Home / 102,207.78-141,045.57-56,884.98

Finding the Fourth Proportional to 102,207.78, 141,045.57 and 56,884.98

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Solution

The fourth proportional to 102,207.78, 141,045.57 and 56,884.98 is: 78,500.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,207.78 : 141,045.57 = 56,884.98 : x
  2. Step 2: Convert to fraction form
    102,207.78/141,045.57 = 56,884.98/x
  3. Step 3: Cross multiply
    102,207.78x = 141,045.57 × 56,884.98
  4. Step 4: Simplify right side
    102,207.78x = 8,023,374,428.54
  5. Step 5: Solve for x
    x = 8,023,374,428.54/102,207.78
  6. Step 6: Final answer
    x = 78,500.62

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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.