Home / 129,948.46-179,330.38-76,234.40

Finding the Fourth Proportional to 129,948.46, 179,330.38 and 76,234.40

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Solution

The fourth proportional to 129,948.46, 179,330.38 and 76,234.40 is: 105,204.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,948.46 : 179,330.38 = 76,234.40 : x
  2. Step 2: Convert to fraction form
    129,948.46/179,330.38 = 76,234.40/x
  3. Step 3: Cross multiply
    129,948.46x = 179,330.38 × 76,234.40
  4. Step 4: Simplify right side
    129,948.46x = 13,671,143,921.07
  5. Step 5: Solve for x
    x = 13,671,143,921.07/129,948.46
  6. Step 6: Final answer
    x = 105,204.36

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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.