Home / 163,595.10-225,763.56-91,971.12

Finding the Fourth Proportional to 163,595.10, 225,763.56 and 91,971.12

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Solution

The fourth proportional to 163,595.10, 225,763.56 and 91,971.12 is: 126,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,595.10 : 225,763.56 = 91,971.12 : x
  2. Step 2: Convert to fraction form
    163,595.10/225,763.56 = 91,971.12/x
  3. Step 3: Cross multiply
    163,595.10x = 225,763.56 × 91,971.12
  4. Step 4: Simplify right side
    163,595.10x = 20,763,727,468.39
  5. Step 5: Solve for x
    x = 20,763,727,468.39/163,595.10
  6. Step 6: Final answer
    x = 126,921.45

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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.