Home / 143,387.18-197,923.52-86,798.56

Finding the Fourth Proportional to 143,387.18, 197,923.52 and 86,798.56

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Solution

The fourth proportional to 143,387.18, 197,923.52 and 86,798.56 is: 119,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,387.18 : 197,923.52 = 86,798.56 : x
  2. Step 2: Convert to fraction form
    143,387.18/197,923.52 = 86,798.56/x
  3. Step 3: Cross multiply
    143,387.18x = 197,923.52 × 86,798.56
  4. Step 4: Simplify right side
    143,387.18x = 17,179,476,526.13
  5. Step 5: Solve for x
    x = 17,179,476,526.13/143,387.18
  6. Step 6: Final answer
    x = 119,811.80

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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.