Home / 129,979.17-179,371.71-70,363.17

Finding the Fourth Proportional to 129,979.17, 179,371.71 and 70,363.17

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Solution

The fourth proportional to 129,979.17, 179,371.71 and 70,363.17 is: 97,101.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,979.17 : 179,371.71 = 70,363.17 : x
  2. Step 2: Convert to fraction form
    129,979.17/179,371.71 = 70,363.17/x
  3. Step 3: Cross multiply
    129,979.17x = 179,371.71 × 70,363.17
  4. Step 4: Simplify right side
    129,979.17x = 12,621,162,123.92
  5. Step 5: Solve for x
    x = 12,621,162,123.92/129,979.17
  6. Step 6: Final answer
    x = 97,101.42

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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.