Home / 115,282.50-159,089.85-64,983.30

Finding the Fourth Proportional to 115,282.50, 159,089.85 and 64,983.30

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Solution

The fourth proportional to 115,282.50, 159,089.85 and 64,983.30 is: 89,676.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,282.50 : 159,089.85 = 64,983.30 : x
  2. Step 2: Convert to fraction form
    115,282.50/159,089.85 = 64,983.30/x
  3. Step 3: Cross multiply
    115,282.50x = 159,089.85 × 64,983.30
  4. Step 4: Simplify right side
    115,282.50x = 10,338,183,449.51
  5. Step 5: Solve for x
    x = 10,338,183,449.51/115,282.50
  6. Step 6: Final answer
    x = 89,676.95

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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.