Home / 102,213.40-141,056.22-56,892.28

Finding the Fourth Proportional to 102,213.40, 141,056.22 and 56,892.28

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Solution

The fourth proportional to 102,213.40, 141,056.22 and 56,892.28 is: 78,512.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,213.40 : 141,056.22 = 56,892.28 : x
  2. Step 2: Convert to fraction form
    102,213.40/141,056.22 = 56,892.28/x
  3. Step 3: Cross multiply
    102,213.40x = 141,056.22 × 56,892.28
  4. Step 4: Simplify right side
    102,213.40x = 8,025,009,963.98
  5. Step 5: Solve for x
    x = 8,025,009,963.98/102,213.40
  6. Step 6: Final answer
    x = 78,512.31

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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.