Home / 162,397.72-224,112.88-90,789.66

Finding the Fourth Proportional to 162,397.72, 224,112.88 and 90,789.66

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Solution

The fourth proportional to 162,397.72, 224,112.88 and 90,789.66 is: 125,291.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,397.72 : 224,112.88 = 90,789.66 : x
  2. Step 2: Convert to fraction form
    162,397.72/224,112.88 = 90,789.66/x
  3. Step 3: Cross multiply
    162,397.72x = 224,112.88 × 90,789.66
  4. Step 4: Simplify right side
    162,397.72x = 20,347,132,176.82
  5. Step 5: Solve for x
    x = 20,347,132,176.82/162,397.72
  6. Step 6: Final answer
    x = 125,291.98

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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.