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Finding the Fourth Proportional to 102,541.80, 143,208.60 and 102,541.80

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Solution

The fourth proportional to 102,541.80, 143,208.60 and 102,541.80 is: 143,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,541.80 : 143,208.60 = 102,541.80 : x
  2. Step 2: Convert to fraction form
    102,541.80/143,208.60 = 102,541.80/x
  3. Step 3: Cross multiply
    102,541.80x = 143,208.60 × 102,541.80
  4. Step 4: Simplify right side
    102,541.80x = 14,684,867,619.48
  5. Step 5: Solve for x
    x = 14,684,867,619.48/102,541.80
  6. Step 6: Final answer
    x = 143,208.60

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Why These Related Problems?

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