Home / 87,241.02-130,270.54-69,270.02

Finding the Fourth Proportional to 87,241.02, 130,270.54 and 69,270.02

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Solution

The fourth proportional to 87,241.02, 130,270.54 and 69,270.02 is: 103,435.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,241.02 : 130,270.54 = 69,270.02 : x
  2. Step 2: Convert to fraction form
    87,241.02/130,270.54 = 69,270.02/x
  3. Step 3: Cross multiply
    87,241.02x = 130,270.54 × 69,270.02
  4. Step 4: Simplify right side
    87,241.02x = 9,023,842,911.21
  5. Step 5: Solve for x
    x = 9,023,842,911.21/87,241.02
  6. Step 6: Final answer
    x = 103,435.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.