Home / 127,227.78-175,573.98-70,638.75

Finding the Fourth Proportional to 127,227.78, 175,573.98 and 70,638.75

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Solution

The fourth proportional to 127,227.78, 175,573.98 and 70,638.75 is: 97,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,227.78 : 175,573.98 = 70,638.75 : x
  2. Step 2: Convert to fraction form
    127,227.78/175,573.98 = 70,638.75/x
  3. Step 3: Cross multiply
    127,227.78x = 175,573.98 × 70,638.75
  4. Step 4: Simplify right side
    127,227.78x = 12,402,326,479.73
  5. Step 5: Solve for x
    x = 12,402,326,479.73/127,227.78
  6. Step 6: Final answer
    x = 97,481.28

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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.