Home / 159,377.13-219,938.76-87,755.67

Finding the Fourth Proportional to 159,377.13, 219,938.76 and 87,755.67

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Solution

The fourth proportional to 159,377.13, 219,938.76 and 87,755.67 is: 121,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,377.13 : 219,938.76 = 87,755.67 : x
  2. Step 2: Convert to fraction form
    159,377.13/219,938.76 = 87,755.67/x
  3. Step 3: Cross multiply
    159,377.13x = 219,938.76 × 87,755.67
  4. Step 4: Simplify right side
    159,377.13x = 19,300,873,242.77
  5. Step 5: Solve for x
    x = 19,300,873,242.77/159,377.13
  6. Step 6: Final answer
    x = 121,101.90

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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.