Home / 160,130.18-220,957.07-91,221.45

Finding the Fourth Proportional to 160,130.18, 220,957.07 and 91,221.45

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Solution

The fourth proportional to 160,130.18, 220,957.07 and 91,221.45 is: 125,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,130.18 : 220,957.07 = 91,221.45 : x
  2. Step 2: Convert to fraction form
    160,130.18/220,957.07 = 91,221.45/x
  3. Step 3: Cross multiply
    160,130.18x = 220,957.07 × 91,221.45
  4. Step 4: Simplify right side
    160,130.18x = 20,156,023,857.04
  5. Step 5: Solve for x
    x = 20,156,023,857.04/160,130.18
  6. Step 6: Final answer
    x = 125,872.74

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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.