Home / 120,501.20-180,719.40-36,261.20

Finding the Fourth Proportional to 120,501.20, 180,719.40 and 36,261.20

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Solution

The fourth proportional to 120,501.20, 180,719.40 and 36,261.20 is: 54,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,501.20 : 180,719.40 = 36,261.20 : x
  2. Step 2: Convert to fraction form
    120,501.20/180,719.40 = 36,261.20/x
  3. Step 3: Cross multiply
    120,501.20x = 180,719.40 × 36,261.20
  4. Step 4: Simplify right side
    120,501.20x = 6,553,102,307.28
  5. Step 5: Solve for x
    x = 6,553,102,307.28/120,501.20
  6. Step 6: Final answer
    x = 54,382.05

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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.