Home / 126,890.98-175,299.15-83,386.42

Finding the Fourth Proportional to 126,890.98, 175,299.15 and 83,386.42

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Solution

The fourth proportional to 126,890.98, 175,299.15 and 83,386.42 is: 115,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,890.98 : 175,299.15 = 83,386.42 : x
  2. Step 2: Convert to fraction form
    126,890.98/175,299.15 = 83,386.42/x
  3. Step 3: Cross multiply
    126,890.98x = 175,299.15 × 83,386.42
  4. Step 4: Simplify right side
    126,890.98x = 14,617,568,547.54
  5. Step 5: Solve for x
    x = 14,617,568,547.54/126,890.98
  6. Step 6: Final answer
    x = 115,197.85

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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.