Home / 87,505.60-131,258.40-70,009.60

Finding the Fourth Proportional to 87,505.60, 131,258.40 and 70,009.60

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Solution

The fourth proportional to 87,505.60, 131,258.40 and 70,009.60 is: 105,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,505.60 : 131,258.40 = 70,009.60 : x
  2. Step 2: Convert to fraction form
    87,505.60/131,258.40 = 70,009.60/x
  3. Step 3: Cross multiply
    87,505.60x = 131,258.40 × 70,009.60
  4. Step 4: Simplify right side
    87,505.60x = 9,189,348,080.64
  5. Step 5: Solve for x
    x = 9,189,348,080.64/87,505.60
  6. Step 6: Final answer
    x = 105,014.40

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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.