Home / 124,065.13-171,154.97-76,290.25

Finding the Fourth Proportional to 124,065.13, 171,154.97 and 76,290.25

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Solution

The fourth proportional to 124,065.13, 171,154.97 and 76,290.25 is: 105,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,065.13 : 171,154.97 = 76,290.25 : x
  2. Step 2: Convert to fraction form
    124,065.13/171,154.97 = 76,290.25/x
  3. Step 3: Cross multiply
    124,065.13x = 171,154.97 × 76,290.25
  4. Step 4: Simplify right side
    124,065.13x = 13,057,454,926.79
  5. Step 5: Solve for x
    x = 13,057,454,926.79/124,065.13
  6. Step 6: Final answer
    x = 105,246.78

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1.5x scale

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.