Home / 129,077.40-193,692.24-54,210.72

Finding the Fourth Proportional to 129,077.40, 193,692.24 and 54,210.72

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Solution

The fourth proportional to 129,077.40, 193,692.24 and 54,210.72 is: 81,348.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,077.40 : 193,692.24 = 54,210.72 : x
  2. Step 2: Convert to fraction form
    129,077.40/193,692.24 = 54,210.72/x
  3. Step 3: Cross multiply
    129,077.40x = 193,692.24 × 54,210.72
  4. Step 4: Simplify right side
    129,077.40x = 10,500,195,788.81
  5. Step 5: Solve for x
    x = 10,500,195,788.81/129,077.40
  6. Step 6: Final answer
    x = 81,348.06

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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.