Home / 155,944.01-215,186.58-115,129.85

Finding the Fourth Proportional to 155,944.01, 215,186.58 and 115,129.85

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Solution

The fourth proportional to 155,944.01, 215,186.58 and 115,129.85 is: 158,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,944.01 : 215,186.58 = 115,129.85 : x
  2. Step 2: Convert to fraction form
    155,944.01/215,186.58 = 115,129.85/x
  3. Step 3: Cross multiply
    155,944.01x = 215,186.58 × 115,129.85
  4. Step 4: Simplify right side
    155,944.01x = 24,774,398,677.41
  5. Step 5: Solve for x
    x = 24,774,398,677.41/155,944.01
  6. Step 6: Final answer
    x = 158,867.27

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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.