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Finding the Fourth Proportional to 129,937.68, 179,314.02 and 70,321.68

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Solution

The fourth proportional to 129,937.68, 179,314.02 and 70,321.68 is: 97,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,937.68 : 179,314.02 = 70,321.68 : x
  2. Step 2: Convert to fraction form
    129,937.68/179,314.02 = 70,321.68/x
  3. Step 3: Cross multiply
    129,937.68x = 179,314.02 × 70,321.68
  4. Step 4: Simplify right side
    129,937.68x = 12,609,663,133.95
  5. Step 5: Solve for x
    x = 12,609,663,133.95/129,937.68
  6. Step 6: Final answer
    x = 97,043.93

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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.