Home / 102,328.20-141,213.11-57,007.80

Finding the Fourth Proportional to 102,328.20, 141,213.11 and 57,007.80

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Solution

The fourth proportional to 102,328.20, 141,213.11 and 57,007.80 is: 78,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,328.20 : 141,213.11 = 57,007.80 : x
  2. Step 2: Convert to fraction form
    102,328.20/141,213.11 = 57,007.80/x
  3. Step 3: Cross multiply
    102,328.20x = 141,213.11 × 57,007.80
  4. Step 4: Simplify right side
    102,328.20x = 8,050,248,447.22
  5. Step 5: Solve for x
    x = 8,050,248,447.22/102,328.20
  6. Step 6: Final answer
    x = 78,670.87

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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.