Home / 126,913.98-175,119.09-72,441.28

Finding the Fourth Proportional to 126,913.98, 175,119.09 and 72,441.28

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Solution

The fourth proportional to 126,913.98, 175,119.09 and 72,441.28 is: 99,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,913.98 : 175,119.09 = 72,441.28 : x
  2. Step 2: Convert to fraction form
    126,913.98/175,119.09 = 72,441.28/x
  3. Step 3: Cross multiply
    126,913.98x = 175,119.09 × 72,441.28
  4. Step 4: Simplify right side
    126,913.98x = 12,685,851,032.04
  5. Step 5: Solve for x
    x = 12,685,851,032.04/126,913.98
  6. Step 6: Final answer
    x = 99,956.29

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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.