Home / 129,309.11-193,799.28-58,155.67

Finding the Fourth Proportional to 129,309.11, 193,799.28 and 58,155.67

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Solution

The fourth proportional to 129,309.11, 193,799.28 and 58,155.67 is: 87,159.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,309.11 : 193,799.28 = 58,155.67 : x
  2. Step 2: Convert to fraction form
    129,309.11/193,799.28 = 58,155.67/x
  3. Step 3: Cross multiply
    129,309.11x = 193,799.28 × 58,155.67
  4. Step 4: Simplify right side
    129,309.11x = 11,270,527,434.25
  5. Step 5: Solve for x
    x = 11,270,527,434.25/129,309.11
  6. Step 6: Final answer
    x = 87,159.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.