Home / 121,524.18-167,678.32-69,831.29

Finding the Fourth Proportional to 121,524.18, 167,678.32 and 69,831.29

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Solution

The fourth proportional to 121,524.18, 167,678.32 and 69,831.29 is: 96,352.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,524.18 : 167,678.32 = 69,831.29 : x
  2. Step 2: Convert to fraction form
    121,524.18/167,678.32 = 69,831.29/x
  3. Step 3: Cross multiply
    121,524.18x = 167,678.32 × 69,831.29
  4. Step 4: Simplify right side
    121,524.18x = 11,709,192,639.53
  5. Step 5: Solve for x
    x = 11,709,192,639.53/121,524.18
  6. Step 6: Final answer
    x = 96,352.78

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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.