Home / 160,835.13-221,979.05-89,238.22

Finding the Fourth Proportional to 160,835.13, 221,979.05 and 89,238.22

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Solution

The fourth proportional to 160,835.13, 221,979.05 and 89,238.22 is: 123,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,835.13 : 221,979.05 = 89,238.22 : x
  2. Step 2: Convert to fraction form
    160,835.13/221,979.05 = 89,238.22/x
  3. Step 3: Cross multiply
    160,835.13x = 221,979.05 × 89,238.22
  4. Step 4: Simplify right side
    160,835.13x = 19,809,014,800.12
  5. Step 5: Solve for x
    x = 19,809,014,800.12/160,835.13
  6. Step 6: Final answer
    x = 123,163.48

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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.