Home / 120,422.50-180,643.10-36,176.07

Finding the Fourth Proportional to 120,422.50, 180,643.10 and 36,176.07

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Solution

The fourth proportional to 120,422.50, 180,643.10 and 36,176.07 is: 54,266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,422.50 : 180,643.10 = 36,176.07 : x
  2. Step 2: Convert to fraction form
    120,422.50/180,643.10 = 36,176.07/x
  3. Step 3: Cross multiply
    120,422.50x = 180,643.10 × 36,176.07
  4. Step 4: Simplify right side
    120,422.50x = 6,534,957,927.15
  5. Step 5: Solve for x
    x = 6,534,957,927.15/120,422.50
  6. Step 6: Final answer
    x = 54,266.92

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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.