Home / 159,163.03-219,640.56-87,543.18

Finding the Fourth Proportional to 159,163.03, 219,640.56 and 87,543.18

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Solution

The fourth proportional to 159,163.03, 219,640.56 and 87,543.18 is: 120,807.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,163.03 : 219,640.56 = 87,543.18 : x
  2. Step 2: Convert to fraction form
    159,163.03/219,640.56 = 87,543.18/x
  3. Step 3: Cross multiply
    159,163.03x = 219,640.56 × 87,543.18
  4. Step 4: Simplify right side
    159,163.03x = 19,228,033,243.52
  5. Step 5: Solve for x
    x = 19,228,033,243.52/159,163.03
  6. Step 6: Final answer
    x = 120,807.16

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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.