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Finding the Fourth Proportional to 101,886.08, 152,827.52 and 55,128

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Solution

The fourth proportional to 101,886.08, 152,827.52 and 55,128 is: 82,691.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,886.08 : 152,827.52 = 55,128 : x
  2. Step 2: Convert to fraction form
    101,886.08/152,827.52 = 55,128/x
  3. Step 3: Cross multiply
    101,886.08x = 152,827.52 × 55,128
  4. Step 4: Simplify right side
    101,886.08x = 8,425,075,522.56
  5. Step 5: Solve for x
    x = 8,425,075,522.56/101,886.08
  6. Step 6: Final answer
    x = 82,691.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.