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Finding the Fourth Proportional to 127,379.44, 175,782.36 and 70,789.68

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Solution

The fourth proportional to 127,379.44, 175,782.36 and 70,789.68 is: 97,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,379.44 : 175,782.36 = 70,789.68 : x
  2. Step 2: Convert to fraction form
    127,379.44/175,782.36 = 70,789.68/x
  3. Step 3: Cross multiply
    127,379.44x = 175,782.36 × 70,789.68
  4. Step 4: Simplify right side
    127,379.44x = 12,443,577,014.04
  5. Step 5: Solve for x
    x = 12,443,577,014.04/127,379.44
  6. Step 6: Final answer
    x = 97,689.05

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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.