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Finding the Fourth Proportional to 144,437.77, 216,750.21 and 77,923.81

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Solution

The fourth proportional to 144,437.77, 216,750.21 and 77,923.81 is: 116,936.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,437.77 : 216,750.21 = 77,923.81 : x
  2. Step 2: Convert to fraction form
    144,437.77/216,750.21 = 77,923.81/x
  3. Step 3: Cross multiply
    144,437.77x = 216,750.21 × 77,923.81
  4. Step 4: Simplify right side
    144,437.77x = 16,890,002,181.50
  5. Step 5: Solve for x
    x = 16,890,002,181.50/144,437.77
  6. Step 6: Final answer
    x = 116,936.19

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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.