Home / 149,032.76-205,669.10-81,966.52

Finding the Fourth Proportional to 149,032.76, 205,669.10 and 81,966.52

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Solution

The fourth proportional to 149,032.76, 205,669.10 and 81,966.52 is: 113,115.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,032.76 : 205,669.10 = 81,966.52 : x
  2. Step 2: Convert to fraction form
    149,032.76/205,669.10 = 81,966.52/x
  3. Step 3: Cross multiply
    149,032.76x = 205,669.10 × 81,966.52
  4. Step 4: Simplify right side
    149,032.76x = 16,857,980,398.53
  5. Step 5: Solve for x
    x = 16,857,980,398.53/149,032.76
  6. Step 6: Final answer
    x = 113,115.94

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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.