Home / 139,514.30-209,271.45-92,275.10

Finding the Fourth Proportional to 139,514.30, 209,271.45 and 92,275.10

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Solution

The fourth proportional to 139,514.30, 209,271.45 and 92,275.10 is: 138,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,514.30 : 209,271.45 = 92,275.10 : x
  2. Step 2: Convert to fraction form
    139,514.30/209,271.45 = 92,275.10/x
  3. Step 3: Cross multiply
    139,514.30x = 209,271.45 × 92,275.10
  4. Step 4: Simplify right side
    139,514.30x = 19,310,543,975.90
  5. Step 5: Solve for x
    x = 19,310,543,975.90/139,514.30
  6. Step 6: Final answer
    x = 138,412.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.