Home / 125,302.28-187,954.64-100,309.74

Finding the Fourth Proportional to 125,302.28, 187,954.64 and 100,309.74

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Solution

The fourth proportional to 125,302.28, 187,954.64 and 100,309.74 is: 150,465.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,302.28 : 187,954.64 = 100,309.74 : x
  2. Step 2: Convert to fraction form
    125,302.28/187,954.64 = 100,309.74/x
  3. Step 3: Cross multiply
    125,302.28x = 187,954.64 × 100,309.74
  4. Step 4: Simplify right side
    125,302.28x = 18,853,681,070.19
  5. Step 5: Solve for x
    x = 18,853,681,070.19/125,302.28
  6. Step 6: Final answer
    x = 150,465.59

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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.