Home / 126,916.14-175,064.82-81,653.04

Finding the Fourth Proportional to 126,916.14, 175,064.82 and 81,653.04

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Solution

The fourth proportional to 126,916.14, 175,064.82 and 81,653.04 is: 112,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,916.14 : 175,064.82 = 81,653.04 : x
  2. Step 2: Convert to fraction form
    126,916.14/175,064.82 = 81,653.04/x
  3. Step 3: Cross multiply
    126,916.14x = 175,064.82 × 81,653.04
  4. Step 4: Simplify right side
    126,916.14x = 14,294,574,750.05
  5. Step 5: Solve for x
    x = 14,294,574,750.05/126,916.14
  6. Step 6: Final answer
    x = 112,630.08

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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.