Home / 136,558.13-188,448.06-76,132.47

Finding the Fourth Proportional to 136,558.13, 188,448.06 and 76,132.47

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Solution

The fourth proportional to 136,558.13, 188,448.06 and 76,132.47 is: 105,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,558.13 : 188,448.06 = 76,132.47 : x
  2. Step 2: Convert to fraction form
    136,558.13/188,448.06 = 76,132.47/x
  3. Step 3: Cross multiply
    136,558.13x = 188,448.06 × 76,132.47
  4. Step 4: Simplify right side
    136,558.13x = 14,347,015,893.85
  5. Step 5: Solve for x
    x = 14,347,015,893.85/136,558.13
  6. Step 6: Final answer
    x = 105,061.60

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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.