Home / 151,741.77-209,403.66-83,758.76

Finding the Fourth Proportional to 151,741.77, 209,403.66 and 83,758.76

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Solution

The fourth proportional to 151,741.77, 209,403.66 and 83,758.76 is: 115,587.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,741.77 : 209,403.66 = 83,758.76 : x
  2. Step 2: Convert to fraction form
    151,741.77/209,403.66 = 83,758.76/x
  3. Step 3: Cross multiply
    151,741.77x = 209,403.66 × 83,758.76
  4. Step 4: Simplify right side
    151,741.77x = 17,539,391,660.15
  5. Step 5: Solve for x
    x = 17,539,391,660.15/151,741.77
  6. Step 6: Final answer
    x = 115,587.10

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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.