Home / 143,547.57-198,368.82-107,675.28

Finding the Fourth Proportional to 143,547.57, 198,368.82 and 107,675.28

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Solution

The fourth proportional to 143,547.57, 198,368.82 and 107,675.28 is: 148,796.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,547.57 : 198,368.82 = 107,675.28 : x
  2. Step 2: Convert to fraction form
    143,547.57/198,368.82 = 107,675.28/x
  3. Step 3: Cross multiply
    143,547.57x = 198,368.82 × 107,675.28
  4. Step 4: Simplify right side
    143,547.57x = 21,359,418,236.77
  5. Step 5: Solve for x
    x = 21,359,418,236.77/143,547.57
  6. Step 6: Final answer
    x = 148,796.79

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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.