Home / 160,711.20-221,777.64-92,728.32

Finding the Fourth Proportional to 160,711.20, 221,777.64 and 92,728.32

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Solution

The fourth proportional to 160,711.20, 221,777.64 and 92,728.32 is: 127,962.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,711.20 : 221,777.64 = 92,728.32 : x
  2. Step 2: Convert to fraction form
    160,711.20/221,777.64 = 92,728.32/x
  3. Step 3: Cross multiply
    160,711.20x = 221,777.64 × 92,728.32
  4. Step 4: Simplify right side
    160,711.20x = 20,565,067,970.76
  5. Step 5: Solve for x
    x = 20,565,067,970.76/160,711.20
  6. Step 6: Final answer
    x = 127,962.88

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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.