Home / 127,336.40-175,669.80-79,557.20

Finding the Fourth Proportional to 127,336.40, 175,669.80 and 79,557.20

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Solution

The fourth proportional to 127,336.40, 175,669.80 and 79,557.20 is: 109,754.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,336.40 : 175,669.80 = 79,557.20 : x
  2. Step 2: Convert to fraction form
    127,336.40/175,669.80 = 79,557.20/x
  3. Step 3: Cross multiply
    127,336.40x = 175,669.80 × 79,557.20
  4. Step 4: Simplify right side
    127,336.40x = 13,975,797,412.56
  5. Step 5: Solve for x
    x = 13,975,797,412.56/127,336.40
  6. Step 6: Final answer
    x = 109,754.93

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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.