Home / 101,026.25-151,309.99-78,354.93

Finding the Fourth Proportional to 101,026.25, 151,309.99 and 78,354.93

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Solution

The fourth proportional to 101,026.25, 151,309.99 and 78,354.93 is: 117,354.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,026.25 : 151,309.99 = 78,354.93 : x
  2. Step 2: Convert to fraction form
    101,026.25/151,309.99 = 78,354.93/x
  3. Step 3: Cross multiply
    101,026.25x = 151,309.99 × 78,354.93
  4. Step 4: Simplify right side
    101,026.25x = 11,855,883,674.75
  5. Step 5: Solve for x
    x = 11,855,883,674.75/101,026.25
  6. Step 6: Final answer
    x = 117,354.49

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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.