Home / 104,927.80-157,428.15-45,805.90

Finding the Fourth Proportional to 104,927.80, 157,428.15 and 45,805.90

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Solution

The fourth proportional to 104,927.80, 157,428.15 and 45,805.90 is: 68,724.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,927.80 : 157,428.15 = 45,805.90 : x
  2. Step 2: Convert to fraction form
    104,927.80/157,428.15 = 45,805.90/x
  3. Step 3: Cross multiply
    104,927.80x = 157,428.15 × 45,805.90
  4. Step 4: Simplify right side
    104,927.80x = 7,211,138,096.09
  5. Step 5: Solve for x
    x = 7,211,138,096.09/104,927.80
  6. Step 6: Final answer
    x = 68,724.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.