Home / 121,595.82-167,805.07-76,275.71

Finding the Fourth Proportional to 121,595.82, 167,805.07 and 76,275.71

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Solution

The fourth proportional to 121,595.82, 167,805.07 and 76,275.71 is: 105,262.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,595.82 : 167,805.07 = 76,275.71 : x
  2. Step 2: Convert to fraction form
    121,595.82/167,805.07 = 76,275.71/x
  3. Step 3: Cross multiply
    121,595.82x = 167,805.07 × 76,275.71
  4. Step 4: Simplify right side
    121,595.82x = 12,799,450,455.40
  5. Step 5: Solve for x
    x = 12,799,450,455.40/121,595.82
  6. Step 6: Final answer
    x = 105,262.26

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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.