Home / 143,666.86-198,165.26-89,858.46

Finding the Fourth Proportional to 143,666.86, 198,165.26 and 89,858.46

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Solution

The fourth proportional to 143,666.86, 198,165.26 and 89,858.46 is: 123,945.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,666.86 : 198,165.26 = 89,858.46 : x
  2. Step 2: Convert to fraction form
    143,666.86/198,165.26 = 89,858.46/x
  3. Step 3: Cross multiply
    143,666.86x = 198,165.26 × 89,858.46
  4. Step 4: Simplify right side
    143,666.86x = 17,806,825,089.10
  5. Step 5: Solve for x
    x = 17,806,825,089.10/143,666.86
  6. Step 6: Final answer
    x = 123,945.25

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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.