Home / 142,121.93-196,199.30-88,424.33

Finding the Fourth Proportional to 142,121.93, 196,199.30 and 88,424.33

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Solution

The fourth proportional to 142,121.93, 196,199.30 and 88,424.33 is: 122,069.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,121.93 : 196,199.30 = 88,424.33 : x
  2. Step 2: Convert to fraction form
    142,121.93/196,199.30 = 88,424.33/x
  3. Step 3: Cross multiply
    142,121.93x = 196,199.30 × 88,424.33
  4. Step 4: Simplify right side
    142,121.93x = 17,348,791,206.85
  5. Step 5: Solve for x
    x = 17,348,791,206.85/142,121.93
  6. Step 6: Final answer
    x = 122,069.77

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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.