Home / 115,717.70-159,620.59-76,426.92

Finding the Fourth Proportional to 115,717.70, 159,620.59 and 76,426.92

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Solution

The fourth proportional to 115,717.70, 159,620.59 and 76,426.92 is: 105,423.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,717.70 : 159,620.59 = 76,426.92 : x
  2. Step 2: Convert to fraction form
    115,717.70/159,620.59 = 76,426.92/x
  3. Step 3: Cross multiply
    115,717.70x = 159,620.59 × 76,426.92
  4. Step 4: Simplify right side
    115,717.70x = 12,199,310,062.28
  5. Step 5: Solve for x
    x = 12,199,310,062.28/115,717.70
  6. Step 6: Final answer
    x = 105,423.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.