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Finding the Fourth Proportional to 159,549.33, 220,173.76 and 87,929.34

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Solution

The fourth proportional to 159,549.33, 220,173.76 and 87,929.34 is: 121,340.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,549.33 : 220,173.76 = 87,929.34 : x
  2. Step 2: Convert to fraction form
    159,549.33/220,173.76 = 87,929.34/x
  3. Step 3: Cross multiply
    159,549.33x = 220,173.76 × 87,929.34
  4. Step 4: Simplify right side
    159,549.33x = 19,359,733,402.12
  5. Step 5: Solve for x
    x = 19,359,733,402.12/159,549.33
  6. Step 6: Final answer
    x = 121,340.11

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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.