Home / 129,148.68-193,619.34-72,954.12

Finding the Fourth Proportional to 129,148.68, 193,619.34 and 72,954.12

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Solution

The fourth proportional to 129,148.68, 193,619.34 and 72,954.12 is: 109,372.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,148.68 : 193,619.34 = 72,954.12 : x
  2. Step 2: Convert to fraction form
    129,148.68/193,619.34 = 72,954.12/x
  3. Step 3: Cross multiply
    129,148.68x = 193,619.34 × 72,954.12
  4. Step 4: Simplify right side
    129,148.68x = 14,125,328,564.68
  5. Step 5: Solve for x
    x = 14,125,328,564.68/129,148.68
  6. Step 6: Final answer
    x = 109,372.61

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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.