Home / 160,621.72-221,456.46-103,159.60

Finding the Fourth Proportional to 160,621.72, 221,456.46 and 103,159.60

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Solution

The fourth proportional to 160,621.72, 221,456.46 and 103,159.60 is: 142,230.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,621.72 : 221,456.46 = 103,159.60 : x
  2. Step 2: Convert to fraction form
    160,621.72/221,456.46 = 103,159.60/x
  3. Step 3: Cross multiply
    160,621.72x = 221,456.46 × 103,159.60
  4. Step 4: Simplify right side
    160,621.72x = 22,845,359,831.02
  5. Step 5: Solve for x
    x = 22,845,359,831.02/160,621.72
  6. Step 6: Final answer
    x = 142,230.83

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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.