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Finding the Fourth Proportional to 108,637.78, 149,913.92 and 63,323.14

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Solution

The fourth proportional to 108,637.78, 149,913.92 and 63,323.14 is: 87,382.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,637.78 : 149,913.92 = 63,323.14 : x
  2. Step 2: Convert to fraction form
    108,637.78/149,913.92 = 63,323.14/x
  3. Step 3: Cross multiply
    108,637.78x = 149,913.92 × 63,323.14
  4. Step 4: Simplify right side
    108,637.78x = 9,493,020,144.11
  5. Step 5: Solve for x
    x = 9,493,020,144.11/108,637.78
  6. Step 6: Final answer
    x = 87,382.31

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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.