Home / 127,729.96-176,281.09-70,375.05

Finding the Fourth Proportional to 127,729.96, 176,281.09 and 70,375.05

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Solution

The fourth proportional to 127,729.96, 176,281.09 and 70,375.05 is: 97,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,729.96 : 176,281.09 = 70,375.05 : x
  2. Step 2: Convert to fraction form
    127,729.96/176,281.09 = 70,375.05/x
  3. Step 3: Cross multiply
    127,729.96x = 176,281.09 × 70,375.05
  4. Step 4: Simplify right side
    127,729.96x = 12,405,789,641.40
  5. Step 5: Solve for x
    x = 12,405,789,641.40/127,729.96
  6. Step 6: Final answer
    x = 97,125.14

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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.