Home / 120,631.95-166,447.17-69,643.80

Finding the Fourth Proportional to 120,631.95, 166,447.17 and 69,643.80

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Solution

The fourth proportional to 120,631.95, 166,447.17 and 69,643.80 is: 96,094.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,631.95 : 166,447.17 = 69,643.80 : x
  2. Step 2: Convert to fraction form
    120,631.95/166,447.17 = 69,643.80/x
  3. Step 3: Cross multiply
    120,631.95x = 166,447.17 × 69,643.80
  4. Step 4: Simplify right side
    120,631.95x = 11,592,013,418.05
  5. Step 5: Solve for x
    x = 11,592,013,418.05/120,631.95
  6. Step 6: Final answer
    x = 96,094.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.