Home / 148,145.75-204,441.54-81,077.75

Finding the Fourth Proportional to 148,145.75, 204,441.54 and 81,077.75

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Solution

The fourth proportional to 148,145.75, 204,441.54 and 81,077.75 is: 111,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,145.75 : 204,441.54 = 81,077.75 : x
  2. Step 2: Convert to fraction form
    148,145.75/204,441.54 = 81,077.75/x
  3. Step 3: Cross multiply
    148,145.75x = 204,441.54 × 81,077.75
  4. Step 4: Simplify right side
    148,145.75x = 16,575,660,069.74
  5. Step 5: Solve for x
    x = 16,575,660,069.74/148,145.75
  6. Step 6: Final answer
    x = 111,887.52

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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.