Home / 102,110.08-140,910.40-57,397.76

Finding the Fourth Proportional to 102,110.08, 140,910.40 and 57,397.76

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Solution

The fourth proportional to 102,110.08, 140,910.40 and 57,397.76 is: 79,208.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,110.08 : 140,910.40 = 57,397.76 : x
  2. Step 2: Convert to fraction form
    102,110.08/140,910.40 = 57,397.76/x
  3. Step 3: Cross multiply
    102,110.08x = 140,910.40 × 57,397.76
  4. Step 4: Simplify right side
    102,110.08x = 8,087,941,320.70
  5. Step 5: Solve for x
    x = 8,087,941,320.70/102,110.08
  6. Step 6: Final answer
    x = 79,208.06

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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.