Home / 129,042.40-193,484.95-57,951.22

Finding the Fourth Proportional to 129,042.40, 193,484.95 and 57,951.22

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Solution

The fourth proportional to 129,042.40, 193,484.95 and 57,951.22 is: 86,891.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,042.40 : 193,484.95 = 57,951.22 : x
  2. Step 2: Convert to fraction form
    129,042.40/193,484.95 = 57,951.22/x
  3. Step 3: Cross multiply
    129,042.40x = 193,484.95 × 57,951.22
  4. Step 4: Simplify right side
    129,042.40x = 11,212,688,904.14
  5. Step 5: Solve for x
    x = 11,212,688,904.14/129,042.40
  6. Step 6: Final answer
    x = 86,891.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.