Home / 163,299.12-225,335.40-91,686.96

Finding the Fourth Proportional to 163,299.12, 225,335.40 and 91,686.96

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Solution

The fourth proportional to 163,299.12, 225,335.40 and 91,686.96 is: 126,518.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,299.12 : 225,335.40 = 91,686.96 : x
  2. Step 2: Convert to fraction form
    163,299.12/225,335.40 = 91,686.96/x
  3. Step 3: Cross multiply
    163,299.12x = 225,335.40 × 91,686.96
  4. Step 4: Simplify right side
    163,299.12x = 20,660,317,806.38
  5. Step 5: Solve for x
    x = 20,660,317,806.38/163,299.12
  6. Step 6: Final answer
    x = 126,518.24

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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.