Home / 119,115.18-164,371.50-65,399.85

Finding the Fourth Proportional to 119,115.18, 164,371.50 and 65,399.85

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Solution

The fourth proportional to 119,115.18, 164,371.50 and 65,399.85 is: 90,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,115.18 : 164,371.50 = 65,399.85 : x
  2. Step 2: Convert to fraction form
    119,115.18/164,371.50 = 65,399.85/x
  3. Step 3: Cross multiply
    119,115.18x = 164,371.50 × 65,399.85
  4. Step 4: Simplify right side
    119,115.18x = 10,749,871,444.28
  5. Step 5: Solve for x
    x = 10,749,871,444.28/119,115.18
  6. Step 6: Final answer
    x = 90,247.70

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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.