Home / 137,569.15-189,841.48-83,834.56

Finding the Fourth Proportional to 137,569.15, 189,841.48 and 83,834.56

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Solution

The fourth proportional to 137,569.15, 189,841.48 and 83,834.56 is: 115,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,569.15 : 189,841.48 = 83,834.56 : x
  2. Step 2: Convert to fraction form
    137,569.15/189,841.48 = 83,834.56/x
  3. Step 3: Cross multiply
    137,569.15x = 189,841.48 × 83,834.56
  4. Step 4: Simplify right side
    137,569.15x = 15,915,276,945.55
  5. Step 5: Solve for x
    x = 15,915,276,945.55/137,569.15
  6. Step 6: Final answer
    x = 115,689.29

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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.