Home / 143,943.73-198,641.77-79,417.06

Finding the Fourth Proportional to 143,943.73, 198,641.77 and 79,417.06

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Solution

The fourth proportional to 143,943.73, 198,641.77 and 79,417.06 is: 109,595.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,943.73 : 198,641.77 = 79,417.06 : x
  2. Step 2: Convert to fraction form
    143,943.73/198,641.77 = 79,417.06/x
  3. Step 3: Cross multiply
    143,943.73x = 198,641.77 × 79,417.06
  4. Step 4: Simplify right side
    143,943.73x = 15,775,544,671.45
  5. Step 5: Solve for x
    x = 15,775,544,671.45/143,943.73
  6. Step 6: Final answer
    x = 109,595.22

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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.