Home / 160,540.17-221,542.64-87,944.50

Finding the Fourth Proportional to 160,540.17, 221,542.64 and 87,944.50

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Solution

The fourth proportional to 160,540.17, 221,542.64 and 87,944.50 is: 121,361.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,540.17 : 221,542.64 = 87,944.50 : x
  2. Step 2: Convert to fraction form
    160,540.17/221,542.64 = 87,944.50/x
  3. Step 3: Cross multiply
    160,540.17x = 221,542.64 × 87,944.50
  4. Step 4: Simplify right side
    160,540.17x = 19,483,457,275.96
  5. Step 5: Solve for x
    x = 19,483,457,275.96/160,540.17
  6. Step 6: Final answer
    x = 121,361.88

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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.