Home / 410,556.79-615,827.89-130,066.75

Finding the Fourth Proportional to 410,556.79, 615,827.89 and 130,066.75

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Solution

The fourth proportional to 410,556.79, 615,827.89 and 130,066.75 is: 195,097.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,556.79 : 615,827.89 = 130,066.75 : x
  2. Step 2: Convert to fraction form
    410,556.79/615,827.89 = 130,066.75/x
  3. Step 3: Cross multiply
    410,556.79x = 615,827.89 × 130,066.75
  4. Step 4: Simplify right side
    410,556.79x = 80,098,732,211.66
  5. Step 5: Solve for x
    x = 80,098,732,211.66/410,556.79
  6. Step 6: Final answer
    x = 195,097.81

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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.