Home / 120,102.01-180,091.78-40,111.18

Finding the Fourth Proportional to 120,102.01, 180,091.78 and 40,111.18

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Solution

The fourth proportional to 120,102.01, 180,091.78 and 40,111.18 is: 60,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,102.01 : 180,091.78 = 40,111.18 : x
  2. Step 2: Convert to fraction form
    120,102.01/180,091.78 = 40,111.18/x
  3. Step 3: Cross multiply
    120,102.01x = 180,091.78 × 40,111.18
  4. Step 4: Simplify right side
    120,102.01x = 7,223,693,253.59
  5. Step 5: Solve for x
    x = 7,223,693,253.59/120,102.01
  6. Step 6: Final answer
    x = 60,146.32

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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.