Home / 188,156.93-282,278.43-81,558.72

Finding the Fourth Proportional to 188,156.93, 282,278.43 and 81,558.72

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Solution

The fourth proportional to 188,156.93, 282,278.43 and 81,558.72 is: 122,356.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,156.93 : 282,278.43 = 81,558.72 : x
  2. Step 2: Convert to fraction form
    188,156.93/282,278.43 = 81,558.72/x
  3. Step 3: Cross multiply
    188,156.93x = 282,278.43 × 81,558.72
  4. Step 4: Simplify right side
    188,156.93x = 23,022,267,434.41
  5. Step 5: Solve for x
    x = 23,022,267,434.41/188,156.93
  6. Step 6: Final answer
    x = 122,356.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.