Home / 129,808.13-179,135.21-70,192.13

Finding the Fourth Proportional to 129,808.13, 179,135.21 and 70,192.13

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Solution

The fourth proportional to 129,808.13, 179,135.21 and 70,192.13 is: 96,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,808.13 : 179,135.21 = 70,192.13 : x
  2. Step 2: Convert to fraction form
    129,808.13/179,135.21 = 70,192.13/x
  3. Step 3: Cross multiply
    129,808.13x = 179,135.21 × 70,192.13
  4. Step 4: Simplify right side
    129,808.13x = 12,573,881,227.70
  5. Step 5: Solve for x
    x = 12,573,881,227.70/129,808.13
  6. Step 6: Final answer
    x = 96,865.13

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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.