Home / 108,583.65-149,853.93-69,856.05

Finding the Fourth Proportional to 108,583.65, 149,853.93 and 69,856.05

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Solution

The fourth proportional to 108,583.65, 149,853.93 and 69,856.05 is: 96,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,583.65 : 149,853.93 = 69,856.05 : x
  2. Step 2: Convert to fraction form
    108,583.65/149,853.93 = 69,856.05/x
  3. Step 3: Cross multiply
    108,583.65x = 149,853.93 × 69,856.05
  4. Step 4: Simplify right side
    108,583.65x = 10,468,203,626.78
  5. Step 5: Solve for x
    x = 10,468,203,626.78/108,583.65
  6. Step 6: Final answer
    x = 96,406.81

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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.