Home / 129,711.12-179,001.24-70,095.12

Finding the Fourth Proportional to 129,711.12, 179,001.24 and 70,095.12

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Solution

The fourth proportional to 129,711.12, 179,001.24 and 70,095.12 is: 96,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,711.12 : 179,001.24 = 70,095.12 : x
  2. Step 2: Convert to fraction form
    129,711.12/179,001.24 = 70,095.12/x
  3. Step 3: Cross multiply
    129,711.12x = 179,001.24 × 70,095.12
  4. Step 4: Simplify right side
    129,711.12x = 12,547,113,397.95
  5. Step 5: Solve for x
    x = 12,547,113,397.95/129,711.12
  6. Step 6: Final answer
    x = 96,731.21

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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.