Home / 102,461.05-141,397.05-57,141.91

Finding the Fourth Proportional to 102,461.05, 141,397.05 and 57,141.91

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Solution

The fourth proportional to 102,461.05, 141,397.05 and 57,141.91 is: 78,856.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,461.05 : 141,397.05 = 57,141.91 : x
  2. Step 2: Convert to fraction form
    102,461.05/141,397.05 = 57,141.91/x
  3. Step 3: Cross multiply
    102,461.05x = 141,397.05 × 57,141.91
  4. Step 4: Simplify right side
    102,461.05x = 8,079,697,505.37
  5. Step 5: Solve for x
    x = 8,079,697,505.37/102,461.05
  6. Step 6: Final answer
    x = 78,856.28

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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.