Home / 107,551.15-148,331.71-90,255.62

Finding the Fourth Proportional to 107,551.15, 148,331.71 and 90,255.62

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Solution

The fourth proportional to 107,551.15, 148,331.71 and 90,255.62 is: 124,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,551.15 : 148,331.71 = 90,255.62 : x
  2. Step 2: Convert to fraction form
    107,551.15/148,331.71 = 90,255.62/x
  3. Step 3: Cross multiply
    107,551.15x = 148,331.71 × 90,255.62
  4. Step 4: Simplify right side
    107,551.15x = 13,387,770,451.71
  5. Step 5: Solve for x
    x = 13,387,770,451.71/107,551.15
  6. Step 6: Final answer
    x = 124,478.17

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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.