Home / 109,867.64-151,620.32-62,128.13

Finding the Fourth Proportional to 109,867.64, 151,620.32 and 62,128.13

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Solution

The fourth proportional to 109,867.64, 151,620.32 and 62,128.13 is: 85,738.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,867.64 : 151,620.32 = 62,128.13 : x
  2. Step 2: Convert to fraction form
    109,867.64/151,620.32 = 62,128.13/x
  3. Step 3: Cross multiply
    109,867.64x = 151,620.32 × 62,128.13
  4. Step 4: Simplify right side
    109,867.64x = 9,419,886,348.82
  5. Step 5: Solve for x
    x = 9,419,886,348.82/109,867.64
  6. Step 6: Final answer
    x = 85,738.50

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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.