Home / 140,739.59-211,109.79-34,123.12

Finding the Fourth Proportional to 140,739.59, 211,109.79 and 34,123.12

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Solution

The fourth proportional to 140,739.59, 211,109.79 and 34,123.12 is: 51,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,739.59 : 211,109.79 = 34,123.12 : x
  2. Step 2: Convert to fraction form
    140,739.59/211,109.79 = 34,123.12/x
  3. Step 3: Cross multiply
    140,739.59x = 211,109.79 × 34,123.12
  4. Step 4: Simplify right side
    140,739.59x = 7,203,724,697.34
  5. Step 5: Solve for x
    x = 7,203,724,697.34/140,739.59
  6. Step 6: Final answer
    x = 51,184.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.