Home / 124,117.20-186,175.80-89,125.20

Finding the Fourth Proportional to 124,117.20, 186,175.80 and 89,125.20

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Solution

The fourth proportional to 124,117.20, 186,175.80 and 89,125.20 is: 133,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,117.20 : 186,175.80 = 89,125.20 : x
  2. Step 2: Convert to fraction form
    124,117.20/186,175.80 = 89,125.20/x
  3. Step 3: Cross multiply
    124,117.20x = 186,175.80 × 89,125.20
  4. Step 4: Simplify right side
    124,117.20x = 16,592,955,410.16
  5. Step 5: Solve for x
    x = 16,592,955,410.16/124,117.20
  6. Step 6: Final answer
    x = 133,687.80

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1.5x scale

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.