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Finding the Fourth Proportional to 136,444.95, 204,689.30 and 57,570.80

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Solution

The fourth proportional to 136,444.95, 204,689.30 and 57,570.80 is: 86,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,444.95 : 204,689.30 = 57,570.80 : x
  2. Step 2: Convert to fraction form
    136,444.95/204,689.30 = 57,570.80/x
  3. Step 3: Cross multiply
    136,444.95x = 204,689.30 × 57,570.80
  4. Step 4: Simplify right side
    136,444.95x = 11,784,125,441.14
  5. Step 5: Solve for x
    x = 11,784,125,441.14/136,444.95
  6. Step 6: Final answer
    x = 86,365.42

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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.