Home / 160,451.56-221,414.71-87,840.55

Finding the Fourth Proportional to 160,451.56, 221,414.71 and 87,840.55

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Solution

The fourth proportional to 160,451.56, 221,414.71 and 87,840.55 is: 121,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,451.56 : 221,414.71 = 87,840.55 : x
  2. Step 2: Convert to fraction form
    160,451.56/221,414.71 = 87,840.55/x
  3. Step 3: Cross multiply
    160,451.56x = 221,414.71 × 87,840.55
  4. Step 4: Simplify right side
    160,451.56x = 19,449,189,904.49
  5. Step 5: Solve for x
    x = 19,449,189,904.49/160,451.56
  6. Step 6: Final answer
    x = 121,215.34

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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.