Home / 176,432.72-243,488.08-100,979.60

Finding the Fourth Proportional to 176,432.72, 243,488.08 and 100,979.60

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Solution

The fourth proportional to 176,432.72, 243,488.08 and 100,979.60 is: 139,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,432.72 : 243,488.08 = 100,979.60 : x
  2. Step 2: Convert to fraction form
    176,432.72/243,488.08 = 100,979.60/x
  3. Step 3: Cross multiply
    176,432.72x = 243,488.08 × 100,979.60
  4. Step 4: Simplify right side
    176,432.72x = 24,587,328,923.17
  5. Step 5: Solve for x
    x = 24,587,328,923.17/176,432.72
  6. Step 6: Final answer
    x = 139,358.10

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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.