Home / 151,639.83-209,269.17-83,664.63

Finding the Fourth Proportional to 151,639.83, 209,269.17 and 83,664.63

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Solution

The fourth proportional to 151,639.83, 209,269.17 and 83,664.63 is: 115,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,639.83 : 209,269.17 = 83,664.63 : x
  2. Step 2: Convert to fraction form
    151,639.83/209,269.17 = 83,664.63/x
  3. Step 3: Cross multiply
    151,639.83x = 209,269.17 × 83,664.63
  4. Step 4: Simplify right side
    151,639.83x = 17,508,427,678.46
  5. Step 5: Solve for x
    x = 17,508,427,678.46/151,639.83
  6. Step 6: Final answer
    x = 115,460.61

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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.