Home / 124,712.56-187,087.29-45,820.64

Finding the Fourth Proportional to 124,712.56, 187,087.29 and 45,820.64

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Solution

The fourth proportional to 124,712.56, 187,087.29 and 45,820.64 is: 68,737.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,712.56 : 187,087.29 = 45,820.64 : x
  2. Step 2: Convert to fraction form
    124,712.56/187,087.29 = 45,820.64/x
  3. Step 3: Cross multiply
    124,712.56x = 187,087.29 × 45,820.64
  4. Step 4: Simplify right side
    124,712.56x = 8,572,458,428.23
  5. Step 5: Solve for x
    x = 8,572,458,428.23/124,712.56
  6. Step 6: Final answer
    x = 68,737.73

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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.