Home / 115,055.28-158,715.40-79,183.02

Finding the Fourth Proportional to 115,055.28, 158,715.40 and 79,183.02

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Solution

The fourth proportional to 115,055.28, 158,715.40 and 79,183.02 is: 109,230.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,055.28 : 158,715.40 = 79,183.02 : x
  2. Step 2: Convert to fraction form
    115,055.28/158,715.40 = 79,183.02/x
  3. Step 3: Cross multiply
    115,055.28x = 158,715.40 × 79,183.02
  4. Step 4: Simplify right side
    115,055.28x = 12,567,564,692.51
  5. Step 5: Solve for x
    x = 12,567,564,692.51/115,055.28
  6. Step 6: Final answer
    x = 109,230.66

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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.