Home / 113,684.92-156,792.71-100,043.51

Finding the Fourth Proportional to 113,684.92, 156,792.71 and 100,043.51

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Solution

The fourth proportional to 113,684.92, 156,792.71 and 100,043.51 is: 137,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,684.92 : 156,792.71 = 100,043.51 : x
  2. Step 2: Convert to fraction form
    113,684.92/156,792.71 = 100,043.51/x
  3. Step 3: Cross multiply
    113,684.92x = 156,792.71 × 100,043.51
  4. Step 4: Simplify right side
    113,684.92x = 15,686,092,516.96
  5. Step 5: Solve for x
    x = 15,686,092,516.96/113,684.92
  6. Step 6: Final answer
    x = 137,978.66

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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.