Home / 155,932.76-215,187.14-87,949.60

Finding the Fourth Proportional to 155,932.76, 215,187.14 and 87,949.60

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Solution

The fourth proportional to 155,932.76, 215,187.14 and 87,949.60 is: 121,370.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,932.76 : 215,187.14 = 87,949.60 : x
  2. Step 2: Convert to fraction form
    155,932.76/215,187.14 = 87,949.60/x
  3. Step 3: Cross multiply
    155,932.76x = 215,187.14 × 87,949.60
  4. Step 4: Simplify right side
    155,932.76x = 18,925,622,888.14
  5. Step 5: Solve for x
    x = 18,925,622,888.14/155,932.76
  6. Step 6: Final answer
    x = 121,370.41

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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.