Home / 152,175.36-209,966.40-91,729.92

Finding the Fourth Proportional to 152,175.36, 209,966.40 and 91,729.92

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Solution

The fourth proportional to 152,175.36, 209,966.40 and 91,729.92 is: 126,565.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,175.36 : 209,966.40 = 91,729.92 : x
  2. Step 2: Convert to fraction form
    152,175.36/209,966.40 = 91,729.92/x
  3. Step 3: Cross multiply
    152,175.36x = 209,966.40 × 91,729.92
  4. Step 4: Simplify right side
    152,175.36x = 19,260,201,074.69
  5. Step 5: Solve for x
    x = 19,260,201,074.69/152,175.36
  6. Step 6: Final answer
    x = 126,565.83

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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.