Home / 125,143.22-187,713.25-30,374.19

Finding the Fourth Proportional to 125,143.22, 187,713.25 and 30,374.19

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Solution

The fourth proportional to 125,143.22, 187,713.25 and 30,374.19 is: 45,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,143.22 : 187,713.25 = 30,374.19 : x
  2. Step 2: Convert to fraction form
    125,143.22/187,713.25 = 30,374.19/x
  3. Step 3: Cross multiply
    125,143.22x = 187,713.25 × 30,374.19
  4. Step 4: Simplify right side
    125,143.22x = 5,701,637,921.02
  5. Step 5: Solve for x
    x = 5,701,637,921.02/125,143.22
  6. Step 6: Final answer
    x = 45,560.90

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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.