Home / 115,712.93-159,676.33-64,716.83

Finding the Fourth Proportional to 115,712.93, 159,676.33 and 64,716.83

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Solution

The fourth proportional to 115,712.93, 159,676.33 and 64,716.83 is: 89,305.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,712.93 : 159,676.33 = 64,716.83 : x
  2. Step 2: Convert to fraction form
    115,712.93/159,676.33 = 64,716.83/x
  3. Step 3: Cross multiply
    115,712.93x = 159,676.33 × 64,716.83
  4. Step 4: Simplify right side
    115,712.93x = 10,333,746,315.22
  5. Step 5: Solve for x
    x = 10,333,746,315.22/115,712.93
  6. Step 6: Final answer
    x = 89,305.03

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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.