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Finding the Fourth Proportional to 87,114.30, 121,804.50 and 87,114.30

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Solution

The fourth proportional to 87,114.30, 121,804.50 and 87,114.30 is: 121,804.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,114.30 : 121,804.50 = 87,114.30 : x
  2. Step 2: Convert to fraction form
    87,114.30/121,804.50 = 87,114.30/x
  3. Step 3: Cross multiply
    87,114.30x = 121,804.50 × 87,114.30
  4. Step 4: Simplify right side
    87,114.30x = 10,610,913,754.35
  5. Step 5: Solve for x
    x = 10,610,913,754.35/87,114.30
  6. Step 6: Final answer
    x = 121,804.50

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.