Home / 120,588.35-180,780.45-45,667.19

Finding the Fourth Proportional to 120,588.35, 180,780.45 and 45,667.19

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Solution

The fourth proportional to 120,588.35, 180,780.45 and 45,667.19 is: 68,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,588.35 : 180,780.45 = 45,667.19 : x
  2. Step 2: Convert to fraction form
    120,588.35/180,780.45 = 45,667.19/x
  3. Step 3: Cross multiply
    120,588.35x = 180,780.45 × 45,667.19
  4. Step 4: Simplify right side
    120,588.35x = 8,255,735,158.44
  5. Step 5: Solve for x
    x = 8,255,735,158.44/120,588.35
  6. Step 6: Final answer
    x = 68,462.13

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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.