Home / 160,560.28-221,363.15-138,140.12

Finding the Fourth Proportional to 160,560.28, 221,363.15 and 138,140.12

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Solution

The fourth proportional to 160,560.28, 221,363.15 and 138,140.12 is: 190,452.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,560.28 : 221,363.15 = 138,140.12 : x
  2. Step 2: Convert to fraction form
    160,560.28/221,363.15 = 138,140.12/x
  3. Step 3: Cross multiply
    160,560.28x = 221,363.15 × 138,140.12
  4. Step 4: Simplify right side
    160,560.28x = 30,579,131,887.67
  5. Step 5: Solve for x
    x = 30,579,131,887.67/160,560.28
  6. Step 6: Final answer
    x = 190,452.65

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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.