Home / 123,764.60-185,646.90-115,891.40

Finding the Fourth Proportional to 123,764.60, 185,646.90 and 115,891.40

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Solution

The fourth proportional to 123,764.60, 185,646.90 and 115,891.40 is: 173,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,764.60 : 185,646.90 = 115,891.40 : x
  2. Step 2: Convert to fraction form
    123,764.60/185,646.90 = 115,891.40/x
  3. Step 3: Cross multiply
    123,764.60x = 185,646.90 × 115,891.40
  4. Step 4: Simplify right side
    123,764.60x = 21,514,879,146.66
  5. Step 5: Solve for x
    x = 21,514,879,146.66/123,764.60
  6. Step 6: Final answer
    x = 173,837.10

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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.