Home / 126,913.89-175,118.96-72,441.19

Finding the Fourth Proportional to 126,913.89, 175,118.96 and 72,441.19

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Solution

The fourth proportional to 126,913.89, 175,118.96 and 72,441.19 is: 99,956.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,913.89 : 175,118.96 = 72,441.19 : x
  2. Step 2: Convert to fraction form
    126,913.89/175,118.96 = 72,441.19/x
  3. Step 3: Cross multiply
    126,913.89x = 175,118.96 × 72,441.19
  4. Step 4: Simplify right side
    126,913.89x = 12,685,825,853.96
  5. Step 5: Solve for x
    x = 12,685,825,853.96/126,913.89
  6. Step 6: Final answer
    x = 99,956.17

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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.