Home / 112,139.65-168,019.06-67,672.97

Finding the Fourth Proportional to 112,139.65, 168,019.06 and 67,672.97

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Solution

The fourth proportional to 112,139.65, 168,019.06 and 67,672.97 is: 101,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,139.65 : 168,019.06 = 67,672.97 : x
  2. Step 2: Convert to fraction form
    112,139.65/168,019.06 = 67,672.97/x
  3. Step 3: Cross multiply
    112,139.65x = 168,019.06 × 67,672.97
  4. Step 4: Simplify right side
    112,139.65x = 11,370,348,806.81
  5. Step 5: Solve for x
    x = 11,370,348,806.81/112,139.65
  6. Step 6: Final answer
    x = 101,394.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.