Home / 142,936.21-197,246.98-79,279.93

Finding the Fourth Proportional to 142,936.21, 197,246.98 and 79,279.93

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Solution

The fourth proportional to 142,936.21, 197,246.98 and 79,279.93 is: 109,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,936.21 : 197,246.98 = 79,279.93 : x
  2. Step 2: Convert to fraction form
    142,936.21/197,246.98 = 79,279.93/x
  3. Step 3: Cross multiply
    142,936.21x = 197,246.98 × 79,279.93
  4. Step 4: Simplify right side
    142,936.21x = 15,637,727,112.77
  5. Step 5: Solve for x
    x = 15,637,727,112.77/142,936.21
  6. Step 6: Final answer
    x = 109,403.54

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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.