Home / 129,550.42-178,792.33-75,832.18

Finding the Fourth Proportional to 129,550.42, 178,792.33 and 75,832.18

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Solution

The fourth proportional to 129,550.42, 178,792.33 and 75,832.18 is: 104,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,550.42 : 178,792.33 = 75,832.18 : x
  2. Step 2: Convert to fraction form
    129,550.42/178,792.33 = 75,832.18/x
  3. Step 3: Cross multiply
    129,550.42x = 178,792.33 × 75,832.18
  4. Step 4: Simplify right side
    129,550.42x = 13,558,212,151.18
  5. Step 5: Solve for x
    x = 13,558,212,151.18/129,550.42
  6. Step 6: Final answer
    x = 104,655.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.