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Finding the Fourth Proportional to 162,977.75, 224,891.28 and 90,378.82

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Solution

The fourth proportional to 162,977.75, 224,891.28 and 90,378.82 is: 124,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,977.75 : 224,891.28 = 90,378.82 : x
  2. Step 2: Convert to fraction form
    162,977.75/224,891.28 = 90,378.82/x
  3. Step 3: Cross multiply
    162,977.75x = 224,891.28 × 90,378.82
  4. Step 4: Simplify right side
    162,977.75x = 20,325,407,952.46
  5. Step 5: Solve for x
    x = 20,325,407,952.46/162,977.75
  6. Step 6: Final answer
    x = 124,712.78

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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.