Home / 137,764.90-206,569.68-47,765.40

Finding the Fourth Proportional to 137,764.90, 206,569.68 and 47,765.40

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Solution

The fourth proportional to 137,764.90, 206,569.68 and 47,765.40 is: 71,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,764.90 : 206,569.68 = 47,765.40 : x
  2. Step 2: Convert to fraction form
    137,764.90/206,569.68 = 47,765.40/x
  3. Step 3: Cross multiply
    137,764.90x = 206,569.68 × 47,765.40
  4. Step 4: Simplify right side
    137,764.90x = 9,866,883,393.07
  5. Step 5: Solve for x
    x = 9,866,883,393.07/137,764.90
  6. Step 6: Final answer
    x = 71,621.17

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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.