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Finding the Fourth Proportional to 124,811.20, 187,216.80 and 124,811.20

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Solution

The fourth proportional to 124,811.20, 187,216.80 and 124,811.20 is: 187,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,811.20 : 187,216.80 = 124,811.20 : x
  2. Step 2: Convert to fraction form
    124,811.20/187,216.80 = 124,811.20/x
  3. Step 3: Cross multiply
    124,811.20x = 187,216.80 × 124,811.20
  4. Step 4: Simplify right side
    124,811.20x = 23,366,753,468.16
  5. Step 5: Solve for x
    x = 23,366,753,468.16/124,811.20
  6. Step 6: Final answer
    x = 187,216.80

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