Home / 102,427.50-141,350.56-57,108.34

Finding the Fourth Proportional to 102,427.50, 141,350.56 and 57,108.34

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Solution

The fourth proportional to 102,427.50, 141,350.56 and 57,108.34 is: 78,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,427.50 : 141,350.56 = 57,108.34 : x
  2. Step 2: Convert to fraction form
    102,427.50/141,350.56 = 57,108.34/x
  3. Step 3: Cross multiply
    102,427.50x = 141,350.56 × 57,108.34
  4. Step 4: Simplify right side
    102,427.50x = 8,072,295,839.67
  5. Step 5: Solve for x
    x = 8,072,295,839.67/102,427.50
  6. Step 6: Final answer
    x = 78,809.85

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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.