Home / 129,096.14-193,720-54,210.52

Finding the Fourth Proportional to 129,096.14, 193,720 and 54,210.52

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Solution

The fourth proportional to 129,096.14, 193,720 and 54,210.52 is: 81,347.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,096.14 : 193,720 = 54,210.52 : x
  2. Step 2: Convert to fraction form
    129,096.14/193,720 = 54,210.52/x
  3. Step 3: Cross multiply
    129,096.14x = 193,720 × 54,210.52
  4. Step 4: Simplify right side
    129,096.14x = 10,501,661,934.40
  5. Step 5: Solve for x
    x = 10,501,661,934.40/129,096.14
  6. Step 6: Final answer
    x = 81,347.61

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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.