Home / 160,358.02-221,147.86-137,689.90

Finding the Fourth Proportional to 160,358.02, 221,147.86 and 137,689.90

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Solution

The fourth proportional to 160,358.02, 221,147.86 and 137,689.90 is: 189,886.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,358.02 : 221,147.86 = 137,689.90 : x
  2. Step 2: Convert to fraction form
    160,358.02/221,147.86 = 137,689.90/x
  3. Step 3: Cross multiply
    160,358.02x = 221,147.86 × 137,689.90
  4. Step 4: Simplify right side
    160,358.02x = 30,449,826,728.61
  5. Step 5: Solve for x
    x = 30,449,826,728.61/160,358.02
  6. Step 6: Final answer
    x = 189,886.52

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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.