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Finding the Fourth Proportional to 162,309.01, 223,982.25 and 90,689.62

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Solution

The fourth proportional to 162,309.01, 223,982.25 and 90,689.62 is: 125,149.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,309.01 : 223,982.25 = 90,689.62 : x
  2. Step 2: Convert to fraction form
    162,309.01/223,982.25 = 90,689.62/x
  3. Step 3: Cross multiply
    162,309.01x = 223,982.25 × 90,689.62
  4. Step 4: Simplify right side
    162,309.01x = 20,312,865,139.25
  5. Step 5: Solve for x
    x = 20,312,865,139.25/162,309.01
  6. Step 6: Final answer
    x = 125,149.34

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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.