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Finding the Fourth Proportional to 144,065.60, 216,033.60 and 55,289.60

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Solution

The fourth proportional to 144,065.60, 216,033.60 and 55,289.60 is: 82,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,065.60 : 216,033.60 = 55,289.60 : x
  2. Step 2: Convert to fraction form
    144,065.60/216,033.60 = 55,289.60/x
  3. Step 3: Cross multiply
    144,065.60x = 216,033.60 × 55,289.60
  4. Step 4: Simplify right side
    144,065.60x = 11,944,411,330.56
  5. Step 5: Solve for x
    x = 11,944,411,330.56/144,065.60
  6. Step 6: Final answer
    x = 82,909.53

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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.