Home / 265,132.02-397,760.32-87,639.04

Finding the Fourth Proportional to 265,132.02, 397,760.32 and 87,639.04

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Solution

The fourth proportional to 265,132.02, 397,760.32 and 87,639.04 is: 131,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,132.02 : 397,760.32 = 87,639.04 : x
  2. Step 2: Convert to fraction form
    265,132.02/397,760.32 = 87,639.04/x
  3. Step 3: Cross multiply
    265,132.02x = 397,760.32 × 87,639.04
  4. Step 4: Simplify right side
    265,132.02x = 34,859,332,594.89
  5. Step 5: Solve for x
    x = 34,859,332,594.89/265,132.02
  6. Step 6: Final answer
    x = 131,479.15

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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.