Home / 129,030.03-193,405.32-54,190.89

Finding the Fourth Proportional to 129,030.03, 193,405.32 and 54,190.89

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Solution

The fourth proportional to 129,030.03, 193,405.32 and 54,190.89 is: 81,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,030.03 : 193,405.32 = 54,190.89 : x
  2. Step 2: Convert to fraction form
    129,030.03/193,405.32 = 54,190.89/x
  3. Step 3: Cross multiply
    129,030.03x = 193,405.32 × 54,190.89
  4. Step 4: Simplify right side
    129,030.03x = 10,480,806,421.53
  5. Step 5: Solve for x
    x = 10,480,806,421.53/129,030.03
  6. Step 6: Final answer
    x = 81,227.65

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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.