Home / 124,740.30-187,110.45-123,428.10

Finding the Fourth Proportional to 124,740.30, 187,110.45 and 123,428.10

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Solution

The fourth proportional to 124,740.30, 187,110.45 and 123,428.10 is: 185,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,740.30 : 187,110.45 = 123,428.10 : x
  2. Step 2: Convert to fraction form
    124,740.30/187,110.45 = 123,428.10/x
  3. Step 3: Cross multiply
    124,740.30x = 187,110.45 × 123,428.10
  4. Step 4: Simplify right side
    124,740.30x = 23,094,687,333.65
  5. Step 5: Solve for x
    x = 23,094,687,333.65/124,740.30
  6. Step 6: Final answer
    x = 185,142.15

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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.