Home / 148,077.12-204,360.48-81,019.20

Finding the Fourth Proportional to 148,077.12, 204,360.48 and 81,019.20

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Solution

The fourth proportional to 148,077.12, 204,360.48 and 81,019.20 is: 111,814.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,077.12 : 204,360.48 = 81,019.20 : x
  2. Step 2: Convert to fraction form
    148,077.12/204,360.48 = 81,019.20/x
  3. Step 3: Cross multiply
    148,077.12x = 204,360.48 × 81,019.20
  4. Step 4: Simplify right side
    148,077.12x = 16,557,122,601.22
  5. Step 5: Solve for x
    x = 16,557,122,601.22/148,077.12
  6. Step 6: Final answer
    x = 111,814.19

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1.5x scale

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.