Home / 115,870.61-173,830.31-39,976.04

Finding the Fourth Proportional to 115,870.61, 173,830.31 and 39,976.04

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Solution

The fourth proportional to 115,870.61, 173,830.31 and 39,976.04 is: 59,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,870.61 : 173,830.31 = 39,976.04 : x
  2. Step 2: Convert to fraction form
    115,870.61/173,830.31 = 39,976.04/x
  3. Step 3: Cross multiply
    115,870.61x = 173,830.31 × 39,976.04
  4. Step 4: Simplify right side
    115,870.61x = 6,949,046,356.74
  5. Step 5: Solve for x
    x = 6,949,046,356.74/115,870.61
  6. Step 6: Final answer
    x = 59,972.47

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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.