Home / 142,837.56-197,095.14-79,175.34

Finding the Fourth Proportional to 142,837.56, 197,095.14 and 79,175.34

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Solution

The fourth proportional to 142,837.56, 197,095.14 and 79,175.34 is: 109,250.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,837.56 : 197,095.14 = 79,175.34 : x
  2. Step 2: Convert to fraction form
    142,837.56/197,095.14 = 79,175.34/x
  3. Step 3: Cross multiply
    142,837.56x = 197,095.14 × 79,175.34
  4. Step 4: Simplify right side
    142,837.56x = 15,605,074,721.85
  5. Step 5: Solve for x
    x = 15,605,074,721.85/142,837.56
  6. Step 6: Final answer
    x = 109,250.50

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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.