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Finding the Fourth Proportional to 159,610.17, 220,263.53 and 87,992.76

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Solution

The fourth proportional to 159,610.17, 220,263.53 and 87,992.76 is: 121,430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,610.17 : 220,263.53 = 87,992.76 : x
  2. Step 2: Convert to fraction form
    159,610.17/220,263.53 = 87,992.76/x
  3. Step 3: Cross multiply
    159,610.17x = 220,263.53 × 87,992.76
  4. Step 4: Simplify right side
    159,610.17x = 19,381,595,492.08
  5. Step 5: Solve for x
    x = 19,381,595,492.08/159,610.17
  6. Step 6: Final answer
    x = 121,430.83

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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.