Home / 127,279.32-175,574.70-118,268.88

Finding the Fourth Proportional to 127,279.32, 175,574.70 and 118,268.88

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Solution

The fourth proportional to 127,279.32, 175,574.70 and 118,268.88 is: 163,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,279.32 : 175,574.70 = 118,268.88 : x
  2. Step 2: Convert to fraction form
    127,279.32/175,574.70 = 118,268.88/x
  3. Step 3: Cross multiply
    127,279.32x = 175,574.70 × 118,268.88
  4. Step 4: Simplify right side
    127,279.32x = 20,765,023,125.34
  5. Step 5: Solve for x
    x = 20,765,023,125.34/127,279.32
  6. Step 6: Final answer
    x = 163,145.30

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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.