Home / 155,177.75-214,145.50-88,109.75

Finding the Fourth Proportional to 155,177.75, 214,145.50 and 88,109.75

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Solution

The fourth proportional to 155,177.75, 214,145.50 and 88,109.75 is: 121,591.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,177.75 : 214,145.50 = 88,109.75 : x
  2. Step 2: Convert to fraction form
    155,177.75/214,145.50 = 88,109.75/x
  3. Step 3: Cross multiply
    155,177.75x = 214,145.50 × 88,109.75
  4. Step 4: Simplify right side
    155,177.75x = 18,868,306,468.63
  5. Step 5: Solve for x
    x = 18,868,306,468.63/155,177.75
  6. Step 6: Final answer
    x = 121,591.57

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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.