Home / 126,690.96-174,831.30-72,975.72

Finding the Fourth Proportional to 126,690.96, 174,831.30 and 72,975.72

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Solution

The fourth proportional to 126,690.96, 174,831.30 and 72,975.72 is: 100,705.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,690.96 : 174,831.30 = 72,975.72 : x
  2. Step 2: Convert to fraction form
    126,690.96/174,831.30 = 72,975.72/x
  3. Step 3: Cross multiply
    126,690.96x = 174,831.30 × 72,975.72
  4. Step 4: Simplify right side
    126,690.96x = 12,758,439,996.04
  5. Step 5: Solve for x
    x = 12,758,439,996.04/126,690.96
  6. Step 6: Final answer
    x = 100,705.21

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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.