Home / 136,699.30-188,644.77-76,266.35

Finding the Fourth Proportional to 136,699.30, 188,644.77 and 76,266.35

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Solution

The fourth proportional to 136,699.30, 188,644.77 and 76,266.35 is: 105,247.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,699.30 : 188,644.77 = 76,266.35 : x
  2. Step 2: Convert to fraction form
    136,699.30/188,644.77 = 76,266.35/x
  3. Step 3: Cross multiply
    136,699.30x = 188,644.77 × 76,266.35
  4. Step 4: Simplify right side
    136,699.30x = 14,387,247,111.27
  5. Step 5: Solve for x
    x = 14,387,247,111.27/136,699.30
  6. Step 6: Final answer
    x = 105,247.41

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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.