Home / 142,938.07-198,158.00-135,354.34

Finding the Fourth Proportional to 142,938.07, 198,158.00 and 135,354.34

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Solution

The fourth proportional to 142,938.07, 198,158.00 and 135,354.34 is: 187,644.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,938.07 : 198,158.00 = 135,354.34 : x
  2. Step 2: Convert to fraction form
    142,938.07/198,158.00 = 135,354.34/x
  3. Step 3: Cross multiply
    142,938.07x = 198,158.00 × 135,354.34
  4. Step 4: Simplify right side
    142,938.07x = 26,821,544,876.65
  5. Step 5: Solve for x
    x = 26,821,544,876.65/142,938.07
  6. Step 6: Final answer
    x = 187,644.52

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.