Home / 151,280.39-208,794.96-87,618.19

Finding the Fourth Proportional to 151,280.39, 208,794.96 and 87,618.19

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Solution

The fourth proportional to 151,280.39, 208,794.96 and 87,618.19 is: 120,929.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,280.39 : 208,794.96 = 87,618.19 : x
  2. Step 2: Convert to fraction form
    151,280.39/208,794.96 = 87,618.19/x
  3. Step 3: Cross multiply
    151,280.39x = 208,794.96 × 87,618.19
  4. Step 4: Simplify right side
    151,280.39x = 18,294,236,476.32
  5. Step 5: Solve for x
    x = 18,294,236,476.32/151,280.39
  6. Step 6: Final answer
    x = 120,929.33

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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.