Home / 126,030.72-173,920.80-68,672.49

Finding the Fourth Proportional to 126,030.72, 173,920.80 and 68,672.49

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Solution

The fourth proportional to 126,030.72, 173,920.80 and 68,672.49 is: 94,767.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,030.72 : 173,920.80 = 68,672.49 : x
  2. Step 2: Convert to fraction form
    126,030.72/173,920.80 = 68,672.49/x
  3. Step 3: Cross multiply
    126,030.72x = 173,920.80 × 68,672.49
  4. Step 4: Simplify right side
    126,030.72x = 11,943,574,398.79
  5. Step 5: Solve for x
    x = 11,943,574,398.79/126,030.72
  6. Step 6: Final answer
    x = 94,767.17

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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.