Home / 125,142.22-187,711.75-30,373.19

Finding the Fourth Proportional to 125,142.22, 187,711.75 and 30,373.19

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Solution

The fourth proportional to 125,142.22, 187,711.75 and 30,373.19 is: 45,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,142.22 : 187,711.75 = 30,373.19 : x
  2. Step 2: Convert to fraction form
    125,142.22/187,711.75 = 30,373.19/x
  3. Step 3: Cross multiply
    125,142.22x = 187,711.75 × 30,373.19
  4. Step 4: Simplify right side
    125,142.22x = 5,701,404,647.98
  5. Step 5: Solve for x
    x = 5,701,404,647.98/125,142.22
  6. Step 6: Final answer
    x = 45,559.40

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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.