Home / 138,200.02-207,300.03-76,264.18

Finding the Fourth Proportional to 138,200.02, 207,300.03 and 76,264.18

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Solution

The fourth proportional to 138,200.02, 207,300.03 and 76,264.18 is: 114,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,200.02 : 207,300.03 = 76,264.18 : x
  2. Step 2: Convert to fraction form
    138,200.02/207,300.03 = 76,264.18/x
  3. Step 3: Cross multiply
    138,200.02x = 207,300.03 × 76,264.18
  4. Step 4: Simplify right side
    138,200.02x = 15,809,566,801.93
  5. Step 5: Solve for x
    x = 15,809,566,801.93/138,200.02
  6. Step 6: Final answer
    x = 114,396.27

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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.