Home / 159,536.55-220,159.41-87,916.65

Finding the Fourth Proportional to 159,536.55, 220,159.41 and 87,916.65

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Solution

The fourth proportional to 159,536.55, 220,159.41 and 87,916.65 is: 121,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,536.55 : 220,159.41 = 87,916.65 : x
  2. Step 2: Convert to fraction form
    159,536.55/220,159.41 = 87,916.65/x
  3. Step 3: Cross multiply
    159,536.55x = 220,159.41 × 87,916.65
  4. Step 4: Simplify right side
    159,536.55x = 19,355,677,793.18
  5. Step 5: Solve for x
    x = 19,355,677,793.18/159,536.55
  6. Step 6: Final answer
    x = 121,324.41

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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.