Home / 140,127.24-193,374.54-79,697.82

Finding the Fourth Proportional to 140,127.24, 193,374.54 and 79,697.82

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Solution

The fourth proportional to 140,127.24, 193,374.54 and 79,697.82 is: 109,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,127.24 : 193,374.54 = 79,697.82 : x
  2. Step 2: Convert to fraction form
    140,127.24/193,374.54 = 79,697.82/x
  3. Step 3: Cross multiply
    140,127.24x = 193,374.54 × 79,697.82
  4. Step 4: Simplify right side
    140,127.24x = 15,411,529,281.50
  5. Step 5: Solve for x
    x = 15,411,529,281.50/140,127.24
  6. Step 6: Final answer
    x = 109,982.39

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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.