Home / 148,818.90-205,373.80-80,835.86

Finding the Fourth Proportional to 148,818.90, 205,373.80 and 80,835.86

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Solution

The fourth proportional to 148,818.90, 205,373.80 and 80,835.86 is: 111,555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,818.90 : 205,373.80 = 80,835.86 : x
  2. Step 2: Convert to fraction form
    148,818.90/205,373.80 = 80,835.86/x
  3. Step 3: Cross multiply
    148,818.90x = 205,373.80 × 80,835.86
  4. Step 4: Simplify right side
    148,818.90x = 16,601,566,749.02
  5. Step 5: Solve for x
    x = 16,601,566,749.02/148,818.90
  6. Step 6: Final answer
    x = 111,555.50

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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.