Home / 137,455.74-189,685.84-80,091.49

Finding the Fourth Proportional to 137,455.74, 189,685.84 and 80,091.49

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Solution

The fourth proportional to 137,455.74, 189,685.84 and 80,091.49 is: 110,524.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,455.74 : 189,685.84 = 80,091.49 : x
  2. Step 2: Convert to fraction form
    137,455.74/189,685.84 = 80,091.49/x
  3. Step 3: Cross multiply
    137,455.74x = 189,685.84 × 80,091.49
  4. Step 4: Simplify right side
    137,455.74x = 15,192,221,157.04
  5. Step 5: Solve for x
    x = 15,192,221,157.04/137,455.74
  6. Step 6: Final answer
    x = 110,524.46

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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.