Home / 158,847.05-219,210.45-87,228.57

Finding the Fourth Proportional to 158,847.05, 219,210.45 and 87,228.57

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Solution

The fourth proportional to 158,847.05, 219,210.45 and 87,228.57 is: 120,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,847.05 : 219,210.45 = 87,228.57 : x
  2. Step 2: Convert to fraction form
    158,847.05/219,210.45 = 87,228.57/x
  3. Step 3: Cross multiply
    158,847.05x = 219,210.45 × 87,228.57
  4. Step 4: Simplify right side
    158,847.05x = 19,121,414,451.62
  5. Step 5: Solve for x
    x = 19,121,414,451.62/158,847.05
  6. Step 6: Final answer
    x = 120,376.26

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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.