Home / 147,731.52-221,597.28-68,900.88

Finding the Fourth Proportional to 147,731.52, 221,597.28 and 68,900.88

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Solution

The fourth proportional to 147,731.52, 221,597.28 and 68,900.88 is: 103,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,731.52 : 221,597.28 = 68,900.88 : x
  2. Step 2: Convert to fraction form
    147,731.52/221,597.28 = 68,900.88/x
  3. Step 3: Cross multiply
    147,731.52x = 221,597.28 × 68,900.88
  4. Step 4: Simplify right side
    147,731.52x = 15,268,247,597.61
  5. Step 5: Solve for x
    x = 15,268,247,597.61/147,731.52
  6. Step 6: Final answer
    x = 103,351.32

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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.