Home / 102,505.50-141,457.62-57,793.50

Finding the Fourth Proportional to 102,505.50, 141,457.62 and 57,793.50

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Solution

The fourth proportional to 102,505.50, 141,457.62 and 57,793.50 is: 79,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,505.50 : 141,457.62 = 57,793.50 : x
  2. Step 2: Convert to fraction form
    102,505.50/141,457.62 = 57,793.50/x
  3. Step 3: Cross multiply
    102,505.50x = 141,457.62 × 57,793.50
  4. Step 4: Simplify right side
    102,505.50x = 8,175,330,961.47
  5. Step 5: Solve for x
    x = 8,175,330,961.47/102,505.50
  6. Step 6: Final answer
    x = 79,755.05

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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.