Home / 180,199.38-248,667.81-99,621.78

Finding the Fourth Proportional to 180,199.38, 248,667.81 and 99,621.78

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Solution

The fourth proportional to 180,199.38, 248,667.81 and 99,621.78 is: 137,474.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,199.38 : 248,667.81 = 99,621.78 : x
  2. Step 2: Convert to fraction form
    180,199.38/248,667.81 = 99,621.78/x
  3. Step 3: Cross multiply
    180,199.38x = 248,667.81 × 99,621.78
  4. Step 4: Simplify right side
    180,199.38x = 24,772,729,860.90
  5. Step 5: Solve for x
    x = 24,772,729,860.90/180,199.38
  6. Step 6: Final answer
    x = 137,474.00

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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.