Home / 155,933.76-215,188.52-87,950.60

Finding the Fourth Proportional to 155,933.76, 215,188.52 and 87,950.60

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Solution

The fourth proportional to 155,933.76, 215,188.52 and 87,950.60 is: 121,371.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,933.76 : 215,188.52 = 87,950.60 : x
  2. Step 2: Convert to fraction form
    155,933.76/215,188.52 = 87,950.60/x
  3. Step 3: Cross multiply
    155,933.76x = 215,188.52 × 87,950.60
  4. Step 4: Simplify right side
    155,933.76x = 18,925,959,447.11
  5. Step 5: Solve for x
    x = 18,925,959,447.11/155,933.76
  6. Step 6: Final answer
    x = 121,371.79

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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.