Home / 102,461.55-141,397.74-57,142.41

Finding the Fourth Proportional to 102,461.55, 141,397.74 and 57,142.41

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Solution

The fourth proportional to 102,461.55, 141,397.74 and 57,142.41 is: 78,856.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,461.55 : 141,397.74 = 57,142.41 : x
  2. Step 2: Convert to fraction form
    102,461.55/141,397.74 = 57,142.41/x
  3. Step 3: Cross multiply
    102,461.55x = 141,397.74 × 57,142.41
  4. Step 4: Simplify right side
    102,461.55x = 8,079,807,632.15
  5. Step 5: Solve for x
    x = 8,079,807,632.15/102,461.55
  6. Step 6: Final answer
    x = 78,856.97

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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.