Home / 149,927.52-206,894.36-81,943.95

Finding the Fourth Proportional to 149,927.52, 206,894.36 and 81,943.95

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Solution

The fourth proportional to 149,927.52, 206,894.36 and 81,943.95 is: 113,079.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,927.52 : 206,894.36 = 81,943.95 : x
  2. Step 2: Convert to fraction form
    149,927.52/206,894.36 = 81,943.95/x
  3. Step 3: Cross multiply
    149,927.52x = 206,894.36 × 81,943.95
  4. Step 4: Simplify right side
    149,927.52x = 16,953,739,905.55
  5. Step 5: Solve for x
    x = 16,953,739,905.55/149,927.52
  6. Step 6: Final answer
    x = 113,079.58

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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.