Home / 120,417.12-180,625.68-36,186.30

Finding the Fourth Proportional to 120,417.12, 180,625.68 and 36,186.30

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Solution

The fourth proportional to 120,417.12, 180,625.68 and 36,186.30 is: 54,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,417.12 : 180,625.68 = 36,186.30 : x
  2. Step 2: Convert to fraction form
    120,417.12/180,625.68 = 36,186.30/x
  3. Step 3: Cross multiply
    120,417.12x = 180,625.68 × 36,186.30
  4. Step 4: Simplify right side
    120,417.12x = 6,536,175,044.18
  5. Step 5: Solve for x
    x = 6,536,175,044.18/120,417.12
  6. Step 6: Final answer
    x = 54,279.45

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1.5x scale

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.