Home / 124,821.40-187,232.10-54,626.20

Finding the Fourth Proportional to 124,821.40, 187,232.10 and 54,626.20

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Solution

The fourth proportional to 124,821.40, 187,232.10 and 54,626.20 is: 81,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,821.40 : 187,232.10 = 54,626.20 : x
  2. Step 2: Convert to fraction form
    124,821.40/187,232.10 = 54,626.20/x
  3. Step 3: Cross multiply
    124,821.40x = 187,232.10 × 54,626.20
  4. Step 4: Simplify right side
    124,821.40x = 10,227,778,141.02
  5. Step 5: Solve for x
    x = 10,227,778,141.02/124,821.40
  6. Step 6: Final answer
    x = 81,939.30

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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.