Home / 160,420.32-221,377.36-88,798.80

Finding the Fourth Proportional to 160,420.32, 221,377.36 and 88,798.80

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Solution

The fourth proportional to 160,420.32, 221,377.36 and 88,798.80 is: 122,540.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,420.32 : 221,377.36 = 88,798.80 : x
  2. Step 2: Convert to fraction form
    160,420.32/221,377.36 = 88,798.80/x
  3. Step 3: Cross multiply
    160,420.32x = 221,377.36 × 88,798.80
  4. Step 4: Simplify right side
    160,420.32x = 19,658,043,471.17
  5. Step 5: Solve for x
    x = 19,658,043,471.17/160,420.32
  6. Step 6: Final answer
    x = 122,540.86

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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.