Home / 140,724.64-194,204.40-77,068.48

Finding the Fourth Proportional to 140,724.64, 194,204.40 and 77,068.48

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Solution

The fourth proportional to 140,724.64, 194,204.40 and 77,068.48 is: 106,356.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,724.64 : 194,204.40 = 77,068.48 : x
  2. Step 2: Convert to fraction form
    140,724.64/194,204.40 = 77,068.48/x
  3. Step 3: Cross multiply
    140,724.64x = 194,204.40 × 77,068.48
  4. Step 4: Simplify right side
    140,724.64x = 14,967,037,917.31
  5. Step 5: Solve for x
    x = 14,967,037,917.31/140,724.64
  6. Step 6: Final answer
    x = 106,356.91

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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.