Home / 151,313.91-208,805.64-83,336.76

Finding the Fourth Proportional to 151,313.91, 208,805.64 and 83,336.76

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Solution

The fourth proportional to 151,313.91, 208,805.64 and 83,336.76 is: 115,000.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,313.91 : 208,805.64 = 83,336.76 : x
  2. Step 2: Convert to fraction form
    151,313.91/208,805.64 = 83,336.76/x
  3. Step 3: Cross multiply
    151,313.91x = 208,805.64 × 83,336.76
  4. Step 4: Simplify right side
    151,313.91x = 17,401,185,507.33
  5. Step 5: Solve for x
    x = 17,401,185,507.33/151,313.91
  6. Step 6: Final answer
    x = 115,000.57

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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.