Home / 143,380.16-197,864.16-79,717.94

Finding the Fourth Proportional to 143,380.16, 197,864.16 and 79,717.94

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Solution

The fourth proportional to 143,380.16, 197,864.16 and 79,717.94 is: 110,010.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,380.16 : 197,864.16 = 79,717.94 : x
  2. Step 2: Convert to fraction form
    143,380.16/197,864.16 = 79,717.94/x
  3. Step 3: Cross multiply
    143,380.16x = 197,864.16 × 79,717.94
  4. Step 4: Simplify right side
    143,380.16x = 15,773,323,235.03
  5. Step 5: Solve for x
    x = 15,773,323,235.03/143,380.16
  6. Step 6: Final answer
    x = 110,010.50

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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.