Home / 120,084.44-180,126.42-112,777.12

Finding the Fourth Proportional to 120,084.44, 180,126.42 and 112,777.12

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Solution

The fourth proportional to 120,084.44, 180,126.42 and 112,777.12 is: 169,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,084.44 : 180,126.42 = 112,777.12 : x
  2. Step 2: Convert to fraction form
    120,084.44/180,126.42 = 112,777.12/x
  3. Step 3: Cross multiply
    120,084.44x = 180,126.42 × 112,777.12
  4. Step 4: Simplify right side
    120,084.44x = 20,314,138,883.51
  5. Step 5: Solve for x
    x = 20,314,138,883.51/120,084.44
  6. Step 6: Final answer
    x = 169,165.45

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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.