Home / 126,578.40-174,623.28-76,248.48

Finding the Fourth Proportional to 126,578.40, 174,623.28 and 76,248.48

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Solution

The fourth proportional to 126,578.40, 174,623.28 and 76,248.48 is: 105,189.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,578.40 : 174,623.28 = 76,248.48 : x
  2. Step 2: Convert to fraction form
    126,578.40/174,623.28 = 76,248.48/x
  3. Step 3: Cross multiply
    126,578.40x = 174,623.28 × 76,248.48
  4. Step 4: Simplify right side
    126,578.40x = 13,314,759,672.61
  5. Step 5: Solve for x
    x = 13,314,759,672.61/126,578.40
  6. Step 6: Final answer
    x = 105,189.82

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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.