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Finding the Fourth Proportional to 108,886.56, 150,263.55 and 61,143

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Solution

The fourth proportional to 108,886.56, 150,263.55 and 61,143 is: 84,377.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,886.56 : 150,263.55 = 61,143 : x
  2. Step 2: Convert to fraction form
    108,886.56/150,263.55 = 61,143/x
  3. Step 3: Cross multiply
    108,886.56x = 150,263.55 × 61,143
  4. Step 4: Simplify right side
    108,886.56x = 9,187,564,237.65
  5. Step 5: Solve for x
    x = 9,187,564,237.65/108,886.56
  6. Step 6: Final answer
    x = 84,377.39

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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.