Home / 125,945.54-173,509.22-87,639.22

Finding the Fourth Proportional to 125,945.54, 173,509.22 and 87,639.22

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Solution

The fourth proportional to 125,945.54, 173,509.22 and 87,639.22 is: 120,736.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,945.54 : 173,509.22 = 87,639.22 : x
  2. Step 2: Convert to fraction form
    125,945.54/173,509.22 = 87,639.22/x
  3. Step 3: Cross multiply
    125,945.54x = 173,509.22 × 87,639.22
  4. Step 4: Simplify right side
    125,945.54x = 15,206,211,836.06
  5. Step 5: Solve for x
    x = 15,206,211,836.06/125,945.54
  6. Step 6: Final answer
    x = 120,736.41

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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.