Home / 176,139.57-243,115.85-108,172.74

Finding the Fourth Proportional to 176,139.57, 243,115.85 and 108,172.74

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Solution

The fourth proportional to 176,139.57, 243,115.85 and 108,172.74 is: 149,304.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,139.57 : 243,115.85 = 108,172.74 : x
  2. Step 2: Convert to fraction form
    176,139.57/243,115.85 = 108,172.74/x
  3. Step 3: Cross multiply
    176,139.57x = 243,115.85 × 108,172.74
  4. Step 4: Simplify right side
    176,139.57x = 26,298,507,631.93
  5. Step 5: Solve for x
    x = 26,298,507,631.93/176,139.57
  6. Step 6: Final answer
    x = 149,304.94

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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.