Home / 127,743.08-176,290.89-71,154.44

Finding the Fourth Proportional to 127,743.08, 176,290.89 and 71,154.44

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Solution

The fourth proportional to 127,743.08, 176,290.89 and 71,154.44 is: 98,196.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,743.08 : 176,290.89 = 71,154.44 : x
  2. Step 2: Convert to fraction form
    127,743.08/176,290.89 = 71,154.44/x
  3. Step 3: Cross multiply
    127,743.08x = 176,290.89 × 71,154.44
  4. Step 4: Simplify right side
    127,743.08x = 12,543,879,555.05
  5. Step 5: Solve for x
    x = 12,543,879,555.05/127,743.08
  6. Step 6: Final answer
    x = 98,196.16

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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.