Home / 136,303.05-187,991.64-88,571.73

Finding the Fourth Proportional to 136,303.05, 187,991.64 and 88,571.73

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Solution

The fourth proportional to 136,303.05, 187,991.64 and 88,571.73 is: 122,159.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,303.05 : 187,991.64 = 88,571.73 : x
  2. Step 2: Convert to fraction form
    136,303.05/187,991.64 = 88,571.73/x
  3. Step 3: Cross multiply
    136,303.05x = 187,991.64 × 88,571.73
  4. Step 4: Simplify right side
    136,303.05x = 16,650,744,780.34
  5. Step 5: Solve for x
    x = 16,650,744,780.34/136,303.05
  6. Step 6: Final answer
    x = 122,159.74

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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.