Home / 155,721.40-233,436.30-121,968.70

Finding the Fourth Proportional to 155,721.40, 233,436.30 and 121,968.70

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Solution

The fourth proportional to 155,721.40, 233,436.30 and 121,968.70 is: 182,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,721.40 : 233,436.30 = 121,968.70 : x
  2. Step 2: Convert to fraction form
    155,721.40/233,436.30 = 121,968.70/x
  3. Step 3: Cross multiply
    155,721.40x = 233,436.30 × 121,968.70
  4. Step 4: Simplify right side
    155,721.40x = 28,471,922,043.81
  5. Step 5: Solve for x
    x = 28,471,922,043.81/155,721.40
  6. Step 6: Final answer
    x = 182,838.85

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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.