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Finding the Fourth Proportional to 108,853.74, 150,220.71 and 61,107.89

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Solution

The fourth proportional to 108,853.74, 150,220.71 and 61,107.89 is: 84,330.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,853.74 : 150,220.71 = 61,107.89 : x
  2. Step 2: Convert to fraction form
    108,853.74/150,220.71 = 61,107.89/x
  3. Step 3: Cross multiply
    108,853.74x = 150,220.71 × 61,107.89
  4. Step 4: Simplify right side
    108,853.74x = 9,179,669,871.30
  5. Step 5: Solve for x
    x = 9,179,669,871.30/108,853.74
  6. Step 6: Final answer
    x = 84,330.31

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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.