Home / 159,629.13-220,289.85-88,011.71

Finding the Fourth Proportional to 159,629.13, 220,289.85 and 88,011.71

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Solution

The fourth proportional to 159,629.13, 220,289.85 and 88,011.71 is: 121,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,629.13 : 220,289.85 = 88,011.71 : x
  2. Step 2: Convert to fraction form
    159,629.13/220,289.85 = 88,011.71/x
  3. Step 3: Cross multiply
    159,629.13x = 220,289.85 × 88,011.71
  4. Step 4: Simplify right side
    159,629.13x = 19,388,087,048.50
  5. Step 5: Solve for x
    x = 19,388,087,048.50/159,629.13
  6. Step 6: Final answer
    x = 121,457.07

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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.