Home / 176,175.04-243,121.72-100,725.12

Finding the Fourth Proportional to 176,175.04, 243,121.72 and 100,725.12

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Solution

The fourth proportional to 176,175.04, 243,121.72 and 100,725.12 is: 139,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,175.04 : 243,121.72 = 100,725.12 : x
  2. Step 2: Convert to fraction form
    176,175.04/243,121.72 = 100,725.12/x
  3. Step 3: Cross multiply
    176,175.04x = 243,121.72 × 100,725.12
  4. Step 4: Simplify right side
    176,175.04x = 24,488,464,421.61
  5. Step 5: Solve for x
    x = 24,488,464,421.61/176,175.04
  6. Step 6: Final answer
    x = 139,000.76

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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.