Home / 127,100.85-175,326.30-79,271.16

Finding the Fourth Proportional to 127,100.85, 175,326.30 and 79,271.16

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Solution

The fourth proportional to 127,100.85, 175,326.30 and 79,271.16 is: 109,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,100.85 : 175,326.30 = 79,271.16 : x
  2. Step 2: Convert to fraction form
    127,100.85/175,326.30 = 79,271.16/x
  3. Step 3: Cross multiply
    127,100.85x = 175,326.30 × 79,271.16
  4. Step 4: Simplify right side
    127,100.85x = 13,898,319,179.51
  5. Step 5: Solve for x
    x = 13,898,319,179.51/127,100.85
  6. Step 6: Final answer
    x = 109,348.75

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1.5x scale

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.