Home / 129,044.48-178,050.22-75,298.82

Finding the Fourth Proportional to 129,044.48, 178,050.22 and 75,298.82

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Solution

The fourth proportional to 129,044.48, 178,050.22 and 75,298.82 is: 103,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,044.48 : 178,050.22 = 75,298.82 : x
  2. Step 2: Convert to fraction form
    129,044.48/178,050.22 = 75,298.82/x
  3. Step 3: Cross multiply
    129,044.48x = 178,050.22 × 75,298.82
  4. Step 4: Simplify right side
    129,044.48x = 13,406,970,388.24
  5. Step 5: Solve for x
    x = 13,406,970,388.24/129,044.48
  6. Step 6: Final answer
    x = 103,894.18

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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.