Home / 159,985.12-220,774.76-88,363.56

Finding the Fourth Proportional to 159,985.12, 220,774.76 and 88,363.56

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Solution

The fourth proportional to 159,985.12, 220,774.76 and 88,363.56 is: 121,939.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,985.12 : 220,774.76 = 88,363.56 : x
  2. Step 2: Convert to fraction form
    159,985.12/220,774.76 = 88,363.56/x
  3. Step 3: Cross multiply
    159,985.12x = 220,774.76 × 88,363.56
  4. Step 4: Simplify right side
    159,985.12x = 19,508,443,751.75
  5. Step 5: Solve for x
    x = 19,508,443,751.75/159,985.12
  6. Step 6: Final answer
    x = 121,939.11

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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.