Home / 106,258.68-159,318.72-49,309.20

Finding the Fourth Proportional to 106,258.68, 159,318.72 and 49,309.20

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Solution

The fourth proportional to 106,258.68, 159,318.72 and 49,309.20 is: 73,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,258.68 : 159,318.72 = 49,309.20 : x
  2. Step 2: Convert to fraction form
    106,258.68/159,318.72 = 49,309.20/x
  3. Step 3: Cross multiply
    106,258.68x = 159,318.72 × 49,309.20
  4. Step 4: Simplify right side
    106,258.68x = 7,855,878,628.22
  5. Step 5: Solve for x
    x = 7,855,878,628.22/106,258.68
  6. Step 6: Final answer
    x = 73,931.64

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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.