Home / 142,781.04-197,034.48-82,351.80

Finding the Fourth Proportional to 142,781.04, 197,034.48 and 82,351.80

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Solution

The fourth proportional to 142,781.04, 197,034.48 and 82,351.80 is: 113,643.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,781.04 : 197,034.48 = 82,351.80 : x
  2. Step 2: Convert to fraction form
    142,781.04/197,034.48 = 82,351.80/x
  3. Step 3: Cross multiply
    142,781.04x = 197,034.48 × 82,351.80
  4. Step 4: Simplify right side
    142,781.04x = 16,226,144,090.06
  5. Step 5: Solve for x
    x = 16,226,144,090.06/142,781.04
  6. Step 6: Final answer
    x = 113,643.55

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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.