Home / 215,971.60-323,957.40-103,632.70

Finding the Fourth Proportional to 215,971.60, 323,957.40 and 103,632.70

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Solution

The fourth proportional to 215,971.60, 323,957.40 and 103,632.70 is: 155,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,971.60 : 323,957.40 = 103,632.70 : x
  2. Step 2: Convert to fraction form
    215,971.60/323,957.40 = 103,632.70/x
  3. Step 3: Cross multiply
    215,971.60x = 323,957.40 × 103,632.70
  4. Step 4: Simplify right side
    215,971.60x = 33,572,580,046.98
  5. Step 5: Solve for x
    x = 33,572,580,046.98/215,971.60
  6. Step 6: Final answer
    x = 155,449.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.