Home / 129,748.96-179,059.80-73,159.12

Finding the Fourth Proportional to 129,748.96, 179,059.80 and 73,159.12

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Solution

The fourth proportional to 129,748.96, 179,059.80 and 73,159.12 is: 100,963.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,748.96 : 179,059.80 = 73,159.12 : x
  2. Step 2: Convert to fraction form
    129,748.96/179,059.80 = 73,159.12/x
  3. Step 3: Cross multiply
    129,748.96x = 179,059.80 × 73,159.12
  4. Step 4: Simplify right side
    129,748.96x = 13,099,857,395.38
  5. Step 5: Solve for x
    x = 13,099,857,395.38/129,748.96
  6. Step 6: Final answer
    x = 100,963.10

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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.