Home / 87,009.40-130,514.10-70,096.60

Finding the Fourth Proportional to 87,009.40, 130,514.10 and 70,096.60

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Solution

The fourth proportional to 87,009.40, 130,514.10 and 70,096.60 is: 105,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,009.40 : 130,514.10 = 70,096.60 : x
  2. Step 2: Convert to fraction form
    87,009.40/130,514.10 = 70,096.60/x
  3. Step 3: Cross multiply
    87,009.40x = 130,514.10 × 70,096.60
  4. Step 4: Simplify right side
    87,009.40x = 9,148,594,662.06
  5. Step 5: Solve for x
    x = 9,148,594,662.06/87,009.40
  6. Step 6: Final answer
    x = 105,144.90

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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.