Home / 81,294.02-122,550.34-75,875.12

Finding the Fourth Proportional to 81,294.02, 122,550.34 and 75,875.12

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Solution

The fourth proportional to 81,294.02, 122,550.34 and 75,875.12 is: 114,381.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,294.02 : 122,550.34 = 75,875.12 : x
  2. Step 2: Convert to fraction form
    81,294.02/122,550.34 = 75,875.12/x
  3. Step 3: Cross multiply
    81,294.02x = 122,550.34 × 75,875.12
  4. Step 4: Simplify right side
    81,294.02x = 9,298,521,753.54
  5. Step 5: Solve for x
    x = 9,298,521,753.54/81,294.02
  6. Step 6: Final answer
    x = 114,381.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.