Home / 159,433.23-220,013.34-86,834.49

Finding the Fourth Proportional to 159,433.23, 220,013.34 and 86,834.49

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Solution

The fourth proportional to 159,433.23, 220,013.34 and 86,834.49 is: 119,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,433.23 : 220,013.34 = 86,834.49 : x
  2. Step 2: Convert to fraction form
    159,433.23/220,013.34 = 86,834.49/x
  3. Step 3: Cross multiply
    159,433.23x = 220,013.34 × 86,834.49
  4. Step 4: Simplify right side
    159,433.23x = 19,104,746,172.10
  5. Step 5: Solve for x
    x = 19,104,746,172.10/159,433.23
  6. Step 6: Final answer
    x = 119,829.14

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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.