Home / 101,202.95-139,671.91-84,177.15

Finding the Fourth Proportional to 101,202.95, 139,671.91 and 84,177.15

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Solution

The fourth proportional to 101,202.95, 139,671.91 and 84,177.15 is: 116,174.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,202.95 : 139,671.91 = 84,177.15 : x
  2. Step 2: Convert to fraction form
    101,202.95/139,671.91 = 84,177.15/x
  3. Step 3: Cross multiply
    101,202.95x = 139,671.91 × 84,177.15
  4. Step 4: Simplify right side
    101,202.95x = 11,757,183,318.86
  5. Step 5: Solve for x
    x = 11,757,183,318.86/101,202.95
  6. Step 6: Final answer
    x = 116,174.32

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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.