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Finding the Fourth Proportional to 157,901.20, 218,049.20 and 101,410.96

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Solution

The fourth proportional to 157,901.20, 218,049.20 and 101,410.96 is: 140,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,901.20 : 218,049.20 = 101,410.96 : x
  2. Step 2: Convert to fraction form
    157,901.20/218,049.20 = 101,410.96/x
  3. Step 3: Cross multiply
    157,901.20x = 218,049.20 × 101,410.96
  4. Step 4: Simplify right side
    157,901.20x = 22,112,578,699.23
  5. Step 5: Solve for x
    x = 22,112,578,699.23/157,901.20
  6. Step 6: Final answer
    x = 140,040.60

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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.