Home / 161,728.40-242,884.20-156,479.60

Finding the Fourth Proportional to 161,728.40, 242,884.20 and 156,479.60

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Solution

The fourth proportional to 161,728.40, 242,884.20 and 156,479.60 is: 235,001.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,728.40 : 242,884.20 = 156,479.60 : x
  2. Step 2: Convert to fraction form
    161,728.40/242,884.20 = 156,479.60/x
  3. Step 3: Cross multiply
    161,728.40x = 242,884.20 × 156,479.60
  4. Step 4: Simplify right side
    161,728.40x = 38,006,422,462.32
  5. Step 5: Solve for x
    x = 38,006,422,462.32/161,728.40
  6. Step 6: Final answer
    x = 235,001.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.