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Finding the Fourth Proportional to 161,615.32, 223,044.65 and 89,995.32

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Solution

The fourth proportional to 161,615.32, 223,044.65 and 89,995.32 is: 124,202.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,615.32 : 223,044.65 = 89,995.32 : x
  2. Step 2: Convert to fraction form
    161,615.32/223,044.65 = 89,995.32/x
  3. Step 3: Cross multiply
    161,615.32x = 223,044.65 × 89,995.32
  4. Step 4: Simplify right side
    161,615.32x = 20,072,974,651.04
  5. Step 5: Solve for x
    x = 20,072,974,651.04/161,615.32
  6. Step 6: Final answer
    x = 124,202.18

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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.