Home / 121,733.81-167,989.51-68,019.23

Finding the Fourth Proportional to 121,733.81, 167,989.51 and 68,019.23

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Solution

The fourth proportional to 121,733.81, 167,989.51 and 68,019.23 is: 93,864.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,733.81 : 167,989.51 = 68,019.23 : x
  2. Step 2: Convert to fraction form
    121,733.81/167,989.51 = 68,019.23/x
  3. Step 3: Cross multiply
    121,733.81x = 167,989.51 × 68,019.23
  4. Step 4: Simplify right side
    121,733.81x = 11,426,517,118.28
  5. Step 5: Solve for x
    x = 11,426,517,118.28/121,733.81
  6. Step 6: Final answer
    x = 93,864.78

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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.