Home / 101,308.95-151,979.76-31,188.24

Finding the Fourth Proportional to 101,308.95, 151,979.76 and 31,188.24

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Solution

The fourth proportional to 101,308.95, 151,979.76 and 31,188.24 is: 46,787.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,308.95 : 151,979.76 = 31,188.24 : x
  2. Step 2: Convert to fraction form
    101,308.95/151,979.76 = 31,188.24/x
  3. Step 3: Cross multiply
    101,308.95x = 151,979.76 × 31,188.24
  4. Step 4: Simplify right side
    101,308.95x = 4,739,981,230.02
  5. Step 5: Solve for x
    x = 4,739,981,230.02/101,308.95
  6. Step 6: Final answer
    x = 46,787.39

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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.