Home / 112,010.76-168,016.12-38,138.76

Finding the Fourth Proportional to 112,010.76, 168,016.12 and 38,138.76

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Solution

The fourth proportional to 112,010.76, 168,016.12 and 38,138.76 is: 57,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,010.76 : 168,016.12 = 38,138.76 : x
  2. Step 2: Convert to fraction form
    112,010.76/168,016.12 = 38,138.76/x
  3. Step 3: Cross multiply
    112,010.76x = 168,016.12 × 38,138.76
  4. Step 4: Simplify right side
    112,010.76x = 6,407,926,476.81
  5. Step 5: Solve for x
    x = 6,407,926,476.81/112,010.76
  6. Step 6: Final answer
    x = 57,208.13

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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.