Home / 115,154.28-158,910.50-64,166.81

Finding the Fourth Proportional to 115,154.28, 158,910.50 and 64,166.81

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Solution

The fourth proportional to 115,154.28, 158,910.50 and 64,166.81 is: 88,548.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,154.28 : 158,910.50 = 64,166.81 : x
  2. Step 2: Convert to fraction form
    115,154.28/158,910.50 = 64,166.81/x
  3. Step 3: Cross multiply
    115,154.28x = 158,910.50 × 64,166.81
  4. Step 4: Simplify right side
    115,154.28x = 10,196,778,745.12
  5. Step 5: Solve for x
    x = 10,196,778,745.12/115,154.28
  6. Step 6: Final answer
    x = 88,548.85

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1.5x scale

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.