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Finding the Fourth Proportional to 161,750.20, 242,625.30 and 157,142.20

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Solution

The fourth proportional to 161,750.20, 242,625.30 and 157,142.20 is: 235,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,750.20 : 242,625.30 = 157,142.20 : x
  2. Step 2: Convert to fraction form
    161,750.20/242,625.30 = 157,142.20/x
  3. Step 3: Cross multiply
    161,750.20x = 242,625.30 × 157,142.20
  4. Step 4: Simplify right side
    161,750.20x = 38,126,673,417.66
  5. Step 5: Solve for x
    x = 38,126,673,417.66/161,750.20
  6. Step 6: Final answer
    x = 235,713.30

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1.5x scale

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.