Home / 136,404.13-188,087.25-93,390.70

Finding the Fourth Proportional to 136,404.13, 188,087.25 and 93,390.70

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Solution

The fourth proportional to 136,404.13, 188,087.25 and 93,390.70 is: 128,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,404.13 : 188,087.25 = 93,390.70 : x
  2. Step 2: Convert to fraction form
    136,404.13/188,087.25 = 93,390.70/x
  3. Step 3: Cross multiply
    136,404.13x = 188,087.25 × 93,390.70
  4. Step 4: Simplify right side
    136,404.13x = 17,565,599,938.58
  5. Step 5: Solve for x
    x = 17,565,599,938.58/136,404.13
  6. Step 6: Final answer
    x = 128,776.16

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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.