Home / 160,649.20-221,697.18-89,030.38

Finding the Fourth Proportional to 160,649.20, 221,697.18 and 89,030.38

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Solution

The fourth proportional to 160,649.20, 221,697.18 and 89,030.38 is: 122,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,649.20 : 221,697.18 = 89,030.38 : x
  2. Step 2: Convert to fraction form
    160,649.20/221,697.18 = 89,030.38/x
  3. Step 3: Cross multiply
    160,649.20x = 221,697.18 × 89,030.38
  4. Step 4: Simplify right side
    160,649.20x = 19,737,784,180.33
  5. Step 5: Solve for x
    x = 19,737,784,180.33/160,649.20
  6. Step 6: Final answer
    x = 122,862.64

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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.