Home / 136,117.69-187,831.67-75,684.60

Finding the Fourth Proportional to 136,117.69, 187,831.67 and 75,684.60

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Solution

The fourth proportional to 136,117.69, 187,831.67 and 75,684.60 is: 104,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,117.69 : 187,831.67 = 75,684.60 : x
  2. Step 2: Convert to fraction form
    136,117.69/187,831.67 = 75,684.60/x
  3. Step 3: Cross multiply
    136,117.69x = 187,831.67 × 75,684.60
  4. Step 4: Simplify right side
    136,117.69x = 14,215,964,432.86
  5. Step 5: Solve for x
    x = 14,215,964,432.86/136,117.69
  6. Step 6: Final answer
    x = 104,438.77

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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.