Home / 163,242.28-225,218.10-91,612.36

Finding the Fourth Proportional to 163,242.28, 225,218.10 and 91,612.36

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Solution

The fourth proportional to 163,242.28, 225,218.10 and 91,612.36 is: 126,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,242.28 : 225,218.10 = 91,612.36 : x
  2. Step 2: Convert to fraction form
    163,242.28/225,218.10 = 91,612.36/x
  3. Step 3: Cross multiply
    163,242.28x = 225,218.10 × 91,612.36
  4. Step 4: Simplify right side
    163,242.28x = 20,632,761,655.72
  5. Step 5: Solve for x
    x = 20,632,761,655.72/163,242.28
  6. Step 6: Final answer
    x = 126,393.49

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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.