Home / 104,816.80-157,052.40-87,191.20

Finding the Fourth Proportional to 104,816.80, 157,052.40 and 87,191.20

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Solution

The fourth proportional to 104,816.80, 157,052.40 and 87,191.20 is: 130,643.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,816.80 : 157,052.40 = 87,191.20 : x
  2. Step 2: Convert to fraction form
    104,816.80/157,052.40 = 87,191.20/x
  3. Step 3: Cross multiply
    104,816.80x = 157,052.40 × 87,191.20
  4. Step 4: Simplify right side
    104,816.80x = 13,693,587,218.88
  5. Step 5: Solve for x
    x = 13,693,587,218.88/104,816.80
  6. Step 6: Final answer
    x = 130,643.06

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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.