Home / 127,855.32-176,441.16-71,270.28

Finding the Fourth Proportional to 127,855.32, 176,441.16 and 71,270.28

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Solution

The fourth proportional to 127,855.32, 176,441.16 and 71,270.28 is: 98,353.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,855.32 : 176,441.16 = 71,270.28 : x
  2. Step 2: Convert to fraction form
    127,855.32/176,441.16 = 71,270.28/x
  3. Step 3: Cross multiply
    127,855.32x = 176,441.16 × 71,270.28
  4. Step 4: Simplify right side
    127,855.32x = 12,575,010,876.72
  5. Step 5: Solve for x
    x = 12,575,010,876.72/127,855.32
  6. Step 6: Final answer
    x = 98,353.44

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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.