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Finding the Fourth Proportional to 162,078.98, 223,674.95 and 90,472.75

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Solution

The fourth proportional to 162,078.98, 223,674.95 and 90,472.75 is: 124,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,078.98 : 223,674.95 = 90,472.75 : x
  2. Step 2: Convert to fraction form
    162,078.98/223,674.95 = 90,472.75/x
  3. Step 3: Cross multiply
    162,078.98x = 223,674.95 × 90,472.75
  4. Step 4: Simplify right side
    162,078.98x = 20,236,487,499.61
  5. Step 5: Solve for x
    x = 20,236,487,499.61/162,078.98
  6. Step 6: Final answer
    x = 124,855.72

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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.