Home / 105,721.80-158,582.70-53,233.80

Finding the Fourth Proportional to 105,721.80, 158,582.70 and 53,233.80

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Solution

The fourth proportional to 105,721.80, 158,582.70 and 53,233.80 is: 79,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,721.80 : 158,582.70 = 53,233.80 : x
  2. Step 2: Convert to fraction form
    105,721.80/158,582.70 = 53,233.80/x
  3. Step 3: Cross multiply
    105,721.80x = 158,582.70 × 53,233.80
  4. Step 4: Simplify right side
    105,721.80x = 8,441,959,735.26
  5. Step 5: Solve for x
    x = 8,441,959,735.26/105,721.80
  6. Step 6: Final answer
    x = 79,850.70

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1.5x scale

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.