Home / 121,618.13-167,831.43-67,904.06

Finding the Fourth Proportional to 121,618.13, 167,831.43 and 67,904.06

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Solution

The fourth proportional to 121,618.13, 167,831.43 and 67,904.06 is: 93,706.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,618.13 : 167,831.43 = 67,904.06 : x
  2. Step 2: Convert to fraction form
    121,618.13/167,831.43 = 67,904.06/x
  3. Step 3: Cross multiply
    121,618.13x = 167,831.43 × 67,904.06
  4. Step 4: Simplify right side
    121,618.13x = 11,396,435,492.61
  5. Step 5: Solve for x
    x = 11,396,435,492.61/121,618.13
  6. Step 6: Final answer
    x = 93,706.72

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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.