Home / 142,985.96-197,344.23-79,344.26

Finding the Fourth Proportional to 142,985.96, 197,344.23 and 79,344.26

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Solution

The fourth proportional to 142,985.96, 197,344.23 and 79,344.26 is: 109,508.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,985.96 : 197,344.23 = 79,344.26 : x
  2. Step 2: Convert to fraction form
    142,985.96/197,344.23 = 79,344.26/x
  3. Step 3: Cross multiply
    142,985.96x = 197,344.23 × 79,344.26
  4. Step 4: Simplify right side
    142,985.96x = 15,658,131,894.62
  5. Step 5: Solve for x
    x = 15,658,131,894.62/142,985.96
  6. Step 6: Final answer
    x = 109,508.18

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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.