Home / 151,513.75-209,085.13-83,529.15

Finding the Fourth Proportional to 151,513.75, 209,085.13 and 83,529.15

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Solution

The fourth proportional to 151,513.75, 209,085.13 and 83,529.15 is: 115,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,513.75 : 209,085.13 = 83,529.15 : x
  2. Step 2: Convert to fraction form
    151,513.75/209,085.13 = 83,529.15/x
  3. Step 3: Cross multiply
    151,513.75x = 209,085.13 × 83,529.15
  4. Step 4: Simplify right side
    151,513.75x = 17,464,703,186.54
  5. Step 5: Solve for x
    x = 17,464,703,186.54/151,513.75
  6. Step 6: Final answer
    x = 115,268.11

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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.