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Finding the Fourth Proportional to 148,762.92, 205,292.82 and 80,779.56

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Solution

The fourth proportional to 148,762.92, 205,292.82 and 80,779.56 is: 111,475.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,762.92 : 205,292.82 = 80,779.56 : x
  2. Step 2: Convert to fraction form
    148,762.92/205,292.82 = 80,779.56/x
  3. Step 3: Cross multiply
    148,762.92x = 205,292.82 × 80,779.56
  4. Step 4: Simplify right side
    148,762.92x = 16,583,463,670.76
  5. Step 5: Solve for x
    x = 16,583,463,670.76/148,762.92
  6. Step 6: Final answer
    x = 111,475.79

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1.5x scale

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.