Home / 159,156.19-219,633.61-87,534.67

Finding the Fourth Proportional to 159,156.19, 219,633.61 and 87,534.67

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Solution

The fourth proportional to 159,156.19, 219,633.61 and 87,534.67 is: 120,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,156.19 : 219,633.61 = 87,534.67 : x
  2. Step 2: Convert to fraction form
    159,156.19/219,633.61 = 87,534.67/x
  3. Step 3: Cross multiply
    159,156.19x = 219,633.61 × 87,534.67
  4. Step 4: Simplify right side
    159,156.19x = 19,225,555,572.26
  5. Step 5: Solve for x
    x = 19,225,555,572.26/159,156.19
  6. Step 6: Final answer
    x = 120,796.78

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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.