Home / 121,521.06-167,698.76-67,805.51

Finding the Fourth Proportional to 121,521.06, 167,698.76 and 67,805.51

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Solution

The fourth proportional to 121,521.06, 167,698.76 and 67,805.51 is: 93,571.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,521.06 : 167,698.76 = 67,805.51 : x
  2. Step 2: Convert to fraction form
    121,521.06/167,698.76 = 67,805.51/x
  3. Step 3: Cross multiply
    121,521.06x = 167,698.76 × 67,805.51
  4. Step 4: Simplify right side
    121,521.06x = 11,370,898,770.65
  5. Step 5: Solve for x
    x = 11,370,898,770.65/121,521.06
  6. Step 6: Final answer
    x = 93,571.43

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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.