Home / 136,466.13-188,323.65-79,116.60

Finding the Fourth Proportional to 136,466.13, 188,323.65 and 79,116.60

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Solution

The fourth proportional to 136,466.13, 188,323.65 and 79,116.60 is: 109,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,466.13 : 188,323.65 = 79,116.60 : x
  2. Step 2: Convert to fraction form
    136,466.13/188,323.65 = 79,116.60/x
  3. Step 3: Cross multiply
    136,466.13x = 188,323.65 × 79,116.60
  4. Step 4: Simplify right side
    136,466.13x = 14,899,526,887.59
  5. Step 5: Solve for x
    x = 14,899,526,887.59/136,466.13
  6. Step 6: Final answer
    x = 109,181.13

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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.