Home / 160,070.20-240,255.96-81,241

Finding the Fourth Proportional to 160,070.20, 240,255.96 and 81,241

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Solution

The fourth proportional to 160,070.20, 240,255.96 and 81,241 is: 121,937.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,070.20 : 240,255.96 = 81,241 : x
  2. Step 2: Convert to fraction form
    160,070.20/240,255.96 = 81,241/x
  3. Step 3: Cross multiply
    160,070.20x = 240,255.96 × 81,241
  4. Step 4: Simplify right side
    160,070.20x = 19,518,634,446.36
  5. Step 5: Solve for x
    x = 19,518,634,446.36/160,070.20
  6. Step 6: Final answer
    x = 121,937.97

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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.