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Finding the Fourth Proportional to 136,486.68, 188,281.44 and 88,722.60

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Solution

The fourth proportional to 136,486.68, 188,281.44 and 88,722.60 is: 122,391.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,486.68 : 188,281.44 = 88,722.60 : x
  2. Step 2: Convert to fraction form
    136,486.68/188,281.44 = 88,722.60/x
  3. Step 3: Cross multiply
    136,486.68x = 188,281.44 × 88,722.60
  4. Step 4: Simplify right side
    136,486.68x = 16,704,818,888.54
  5. Step 5: Solve for x
    x = 16,704,818,888.54/136,486.68
  6. Step 6: Final answer
    x = 122,391.57

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1.5x scale

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.