Home / 155,925.54-215,177.11-84,305.41

Finding the Fourth Proportional to 155,925.54, 215,177.11 and 84,305.41

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Solution

The fourth proportional to 155,925.54, 215,177.11 and 84,305.41 is: 116,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,925.54 : 215,177.11 = 84,305.41 : x
  2. Step 2: Convert to fraction form
    155,925.54/215,177.11 = 84,305.41/x
  3. Step 3: Cross multiply
    155,925.54x = 215,177.11 × 84,305.41
  4. Step 4: Simplify right side
    155,925.54x = 18,140,593,732.46
  5. Step 5: Solve for x
    x = 18,140,593,732.46/155,925.54
  6. Step 6: Final answer
    x = 116,341.39

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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.