Home / 156,188.84-215,532.06-91,649.38

Finding the Fourth Proportional to 156,188.84, 215,532.06 and 91,649.38

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Solution

The fourth proportional to 156,188.84, 215,532.06 and 91,649.38 is: 126,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,188.84 : 215,532.06 = 91,649.38 : x
  2. Step 2: Convert to fraction form
    156,188.84/215,532.06 = 91,649.38/x
  3. Step 3: Cross multiply
    156,188.84x = 215,532.06 × 91,649.38
  4. Step 4: Simplify right side
    156,188.84x = 19,753,379,669.12
  5. Step 5: Solve for x
    x = 19,753,379,669.12/156,188.84
  6. Step 6: Final answer
    x = 126,471.13

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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.