Home / 102,676.16-141,693.60-57,356.05

Finding the Fourth Proportional to 102,676.16, 141,693.60 and 57,356.05

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Solution

The fourth proportional to 102,676.16, 141,693.60 and 57,356.05 is: 79,151.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,676.16 : 141,693.60 = 57,356.05 : x
  2. Step 2: Convert to fraction form
    102,676.16/141,693.60 = 57,356.05/x
  3. Step 3: Cross multiply
    102,676.16x = 141,693.60 × 57,356.05
  4. Step 4: Simplify right side
    102,676.16x = 8,126,984,211.03
  5. Step 5: Solve for x
    x = 8,126,984,211.03/102,676.16
  6. Step 6: Final answer
    x = 79,151.62

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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.