Home / 127,376.88-175,758.84-70,780.56

Finding the Fourth Proportional to 127,376.88, 175,758.84 and 70,780.56

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Solution

The fourth proportional to 127,376.88, 175,758.84 and 70,780.56 is: 97,665.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,376.88 : 175,758.84 = 70,780.56 : x
  2. Step 2: Convert to fraction form
    127,376.88/175,758.84 = 70,780.56/x
  3. Step 3: Cross multiply
    127,376.88x = 175,758.84 × 70,780.56
  4. Step 4: Simplify right side
    127,376.88x = 12,440,309,120.15
  5. Step 5: Solve for x
    x = 12,440,309,120.15/127,376.88
  6. Step 6: Final answer
    x = 97,665.36

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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.