Home / 155,944.60-215,203.40-84,324.45

Finding the Fourth Proportional to 155,944.60, 215,203.40 and 84,324.45

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Solution

The fourth proportional to 155,944.60, 215,203.40 and 84,324.45 is: 116,367.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,944.60 : 215,203.40 = 84,324.45 : x
  2. Step 2: Convert to fraction form
    155,944.60/215,203.40 = 84,324.45/x
  3. Step 3: Cross multiply
    155,944.60x = 215,203.40 × 84,324.45
  4. Step 4: Simplify right side
    155,944.60x = 18,146,908,343.13
  5. Step 5: Solve for x
    x = 18,146,908,343.13/155,944.60
  6. Step 6: Final answer
    x = 116,367.66

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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.