Home / 129,830.60-194,726.70-36,345.80

Finding the Fourth Proportional to 129,830.60, 194,726.70 and 36,345.80

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Solution

The fourth proportional to 129,830.60, 194,726.70 and 36,345.80 is: 54,513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,830.60 : 194,726.70 = 36,345.80 : x
  2. Step 2: Convert to fraction form
    129,830.60/194,726.70 = 36,345.80/x
  3. Step 3: Cross multiply
    129,830.60x = 194,726.70 × 36,345.80
  4. Step 4: Simplify right side
    129,830.60x = 7,077,497,692.86
  5. Step 5: Solve for x
    x = 7,077,497,692.86/129,830.60
  6. Step 6: Final answer
    x = 54,513.33

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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.