Home / 133,718.10-200,258.28-77,439.30

Finding the Fourth Proportional to 133,718.10, 200,258.28 and 77,439.30

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Solution

The fourth proportional to 133,718.10, 200,258.28 and 77,439.30 is: 115,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,718.10 : 200,258.28 = 77,439.30 : x
  2. Step 2: Convert to fraction form
    133,718.10/200,258.28 = 77,439.30/x
  3. Step 3: Cross multiply
    133,718.10x = 200,258.28 × 77,439.30
  4. Step 4: Simplify right side
    133,718.10x = 15,507,861,022.40
  5. Step 5: Solve for x
    x = 15,507,861,022.40/133,718.10
  6. Step 6: Final answer
    x = 115,974.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.