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Finding the Fourth Proportional to 108,226.40, 149,352 and 60,479.74

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Solution

The fourth proportional to 108,226.40, 149,352 and 60,479.74 is: 83,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,226.40 : 149,352 = 60,479.74 : x
  2. Step 2: Convert to fraction form
    108,226.40/149,352 = 60,479.74/x
  3. Step 3: Cross multiply
    108,226.40x = 149,352 × 60,479.74
  4. Step 4: Simplify right side
    108,226.40x = 9,032,769,381.72
  5. Step 5: Solve for x
    x = 9,032,769,381.72/108,226.40
  6. Step 6: Final answer
    x = 83,461.79

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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.