Home / 112,590.92-155,406.18-70,124.36

Finding the Fourth Proportional to 112,590.92, 155,406.18 and 70,124.36

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Solution

The fourth proportional to 112,590.92, 155,406.18 and 70,124.36 is: 96,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,590.92 : 155,406.18 = 70,124.36 : x
  2. Step 2: Convert to fraction form
    112,590.92/155,406.18 = 70,124.36/x
  3. Step 3: Cross multiply
    112,590.92x = 155,406.18 × 70,124.36
  4. Step 4: Simplify right side
    112,590.92x = 10,897,758,912.54
  5. Step 5: Solve for x
    x = 10,897,758,912.54/112,590.92
  6. Step 6: Final answer
    x = 96,790.74

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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.