Home / 163,242.11-225,270.95-90,641.24

Finding the Fourth Proportional to 163,242.11, 225,270.95 and 90,641.24

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Solution

The fourth proportional to 163,242.11, 225,270.95 and 90,641.24 is: 125,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,242.11 : 225,270.95 = 90,641.24 : x
  2. Step 2: Convert to fraction form
    163,242.11/225,270.95 = 90,641.24/x
  3. Step 3: Cross multiply
    163,242.11x = 225,270.95 × 90,641.24
  4. Step 4: Simplify right side
    163,242.11x = 20,418,836,664.42
  5. Step 5: Solve for x
    x = 20,418,836,664.42/163,242.11
  6. Step 6: Final answer
    x = 125,083.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.