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Finding the Fourth Proportional to 155,846.36, 215,068.01 and 88,778.36

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Solution

The fourth proportional to 155,846.36, 215,068.01 and 88,778.36 is: 122,514.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,846.36 : 215,068.01 = 88,778.36 : x
  2. Step 2: Convert to fraction form
    155,846.36/215,068.01 = 88,778.36/x
  3. Step 3: Cross multiply
    155,846.36x = 215,068.01 × 88,778.36
  4. Step 4: Simplify right side
    155,846.36x = 19,093,385,216.26
  5. Step 5: Solve for x
    x = 19,093,385,216.26/155,846.36
  6. Step 6: Final answer
    x = 122,514.16

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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.