Home / 143,881.31-198,554.64-82,637.52

Finding the Fourth Proportional to 143,881.31, 198,554.64 and 82,637.52

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Solution

The fourth proportional to 143,881.31, 198,554.64 and 82,637.52 is: 114,038.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,881.31 : 198,554.64 = 82,637.52 : x
  2. Step 2: Convert to fraction form
    143,881.31/198,554.64 = 82,637.52/x
  3. Step 3: Cross multiply
    143,881.31x = 198,554.64 × 82,637.52
  4. Step 4: Simplify right side
    143,881.31x = 16,408,062,444.46
  5. Step 5: Solve for x
    x = 16,408,062,444.46/143,881.31
  6. Step 6: Final answer
    x = 114,038.87

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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.