Home / 136,759.08-188,737.02-76,341.60

Finding the Fourth Proportional to 136,759.08, 188,737.02 and 76,341.60

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Solution

The fourth proportional to 136,759.08, 188,737.02 and 76,341.60 is: 105,356.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,759.08 : 188,737.02 = 76,341.60 : x
  2. Step 2: Convert to fraction form
    136,759.08/188,737.02 = 76,341.60/x
  3. Step 3: Cross multiply
    136,759.08x = 188,737.02 × 76,341.60
  4. Step 4: Simplify right side
    136,759.08x = 14,408,486,086.03
  5. Step 5: Solve for x
    x = 14,408,486,086.03/136,759.08
  6. Step 6: Final answer
    x = 105,356.71

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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.