Home / 102,202.80-141,046.64-56,880.28

Finding the Fourth Proportional to 102,202.80, 141,046.64 and 56,880.28

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Solution

The fourth proportional to 102,202.80, 141,046.64 and 56,880.28 is: 78,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,202.80 : 141,046.64 = 56,880.28 : x
  2. Step 2: Convert to fraction form
    102,202.80/141,046.64 = 56,880.28/x
  3. Step 3: Cross multiply
    102,202.80x = 141,046.64 × 56,880.28
  4. Step 4: Simplify right side
    102,202.80x = 8,022,772,376.26
  5. Step 5: Solve for x
    x = 8,022,772,376.26/102,202.80
  6. Step 6: Final answer
    x = 78,498.56

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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.