Home / 156,236.65-234,365.98-77,329.69

Finding the Fourth Proportional to 156,236.65, 234,365.98 and 77,329.69

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Solution

The fourth proportional to 156,236.65, 234,365.98 and 77,329.69 is: 115,999.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,236.65 : 234,365.98 = 77,329.69 : x
  2. Step 2: Convert to fraction form
    156,236.65/234,365.98 = 77,329.69/x
  3. Step 3: Cross multiply
    156,236.65x = 234,365.98 × 77,329.69
  4. Step 4: Simplify right side
    156,236.65x = 18,123,448,163.19
  5. Step 5: Solve for x
    x = 18,123,448,163.19/156,236.65
  6. Step 6: Final answer
    x = 115,999.98

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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.