Home / 151,708.12-209,359.41-83,728.26

Finding the Fourth Proportional to 151,708.12, 209,359.41 and 83,728.26

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Solution

The fourth proportional to 151,708.12, 209,359.41 and 83,728.26 is: 115,546.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,708.12 : 209,359.41 = 83,728.26 : x
  2. Step 2: Convert to fraction form
    151,708.12/209,359.41 = 83,728.26/x
  3. Step 3: Cross multiply
    151,708.12x = 209,359.41 × 83,728.26
  4. Step 4: Simplify right side
    151,708.12x = 17,529,299,113.93
  5. Step 5: Solve for x
    x = 17,529,299,113.93/151,708.12
  6. Step 6: Final answer
    x = 115,546.22

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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.