Home / 120,749.60-181,124.40-41,871.80

Finding the Fourth Proportional to 120,749.60, 181,124.40 and 41,871.80

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Solution

The fourth proportional to 120,749.60, 181,124.40 and 41,871.80 is: 62,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,749.60 : 181,124.40 = 41,871.80 : x
  2. Step 2: Convert to fraction form
    120,749.60/181,124.40 = 41,871.80/x
  3. Step 3: Cross multiply
    120,749.60x = 181,124.40 × 41,871.80
  4. Step 4: Simplify right side
    120,749.60x = 7,584,004,651.92
  5. Step 5: Solve for x
    x = 7,584,004,651.92/120,749.60
  6. Step 6: Final answer
    x = 62,807.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.