Home / 163,145.61-225,121.28-90,548.15

Finding the Fourth Proportional to 163,145.61, 225,121.28 and 90,548.15

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Solution

The fourth proportional to 163,145.61, 225,121.28 and 90,548.15 is: 124,945.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,145.61 : 225,121.28 = 90,548.15 : x
  2. Step 2: Convert to fraction form
    163,145.61/225,121.28 = 90,548.15/x
  3. Step 3: Cross multiply
    163,145.61x = 225,121.28 × 90,548.15
  4. Step 4: Simplify right side
    163,145.61x = 20,384,313,851.28
  5. Step 5: Solve for x
    x = 20,384,313,851.28/163,145.61
  6. Step 6: Final answer
    x = 124,945.52

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1.5x scale

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.