Home / 148,687.08-205,182.66-80,702.59

Finding the Fourth Proportional to 148,687.08, 205,182.66 and 80,702.59

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Solution

The fourth proportional to 148,687.08, 205,182.66 and 80,702.59 is: 111,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,687.08 : 205,182.66 = 80,702.59 : x
  2. Step 2: Convert to fraction form
    148,687.08/205,182.66 = 80,702.59/x
  3. Step 3: Cross multiply
    148,687.08x = 205,182.66 × 80,702.59
  4. Step 4: Simplify right side
    148,687.08x = 16,558,771,874.77
  5. Step 5: Solve for x
    x = 16,558,771,874.77/148,687.08
  6. Step 6: Final answer
    x = 111,366.58

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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.