Home / 127,128.25-175,436.99-70,548.73

Finding the Fourth Proportional to 127,128.25, 175,436.99 and 70,548.73

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Solution

The fourth proportional to 127,128.25, 175,436.99 and 70,548.73 is: 97,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,128.25 : 175,436.99 = 70,548.73 : x
  2. Step 2: Convert to fraction form
    127,128.25/175,436.99 = 70,548.73/x
  3. Step 3: Cross multiply
    127,128.25x = 175,436.99 × 70,548.73
  4. Step 4: Simplify right side
    127,128.25x = 12,376,856,486.78
  5. Step 5: Solve for x
    x = 12,376,856,486.78/127,128.25
  6. Step 6: Final answer
    x = 97,357.25

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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.