Home / 143,444.64-197,950.62-78,911.16

Finding the Fourth Proportional to 143,444.64, 197,950.62 and 78,911.16

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Solution

The fourth proportional to 143,444.64, 197,950.62 and 78,911.16 is: 108,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,444.64 : 197,950.62 = 78,911.16 : x
  2. Step 2: Convert to fraction form
    143,444.64/197,950.62 = 78,911.16/x
  3. Step 3: Cross multiply
    143,444.64x = 197,950.62 × 78,911.16
  4. Step 4: Simplify right side
    143,444.64x = 15,620,513,046.92
  5. Step 5: Solve for x
    x = 15,620,513,046.92/143,444.64
  6. Step 6: Final answer
    x = 108,895.76

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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.