Home / 113,435.44-156,543.64-68,115.33

Finding the Fourth Proportional to 113,435.44, 156,543.64 and 68,115.33

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Solution

The fourth proportional to 113,435.44, 156,543.64 and 68,115.33 is: 94,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,435.44 : 156,543.64 = 68,115.33 : x
  2. Step 2: Convert to fraction form
    113,435.44/156,543.64 = 68,115.33/x
  3. Step 3: Cross multiply
    113,435.44x = 156,543.64 × 68,115.33
  4. Step 4: Simplify right side
    113,435.44x = 10,663,021,527.71
  5. Step 5: Solve for x
    x = 10,663,021,527.71/113,435.44
  6. Step 6: Final answer
    x = 94,000.80

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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.