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Finding the Fourth Proportional to 162,081.29, 223,672.45 and 90,461.29

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Solution

The fourth proportional to 162,081.29, 223,672.45 and 90,461.29 is: 124,836.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,081.29 : 223,672.45 = 90,461.29 : x
  2. Step 2: Convert to fraction form
    162,081.29/223,672.45 = 90,461.29/x
  3. Step 3: Cross multiply
    162,081.29x = 223,672.45 × 90,461.29
  4. Step 4: Simplify right side
    162,081.29x = 20,233,698,364.46
  5. Step 5: Solve for x
    x = 20,233,698,364.46/162,081.29
  6. Step 6: Final answer
    x = 124,836.73

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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.