Home / 115,748.37-159,740.10-64,766.97

Finding the Fourth Proportional to 115,748.37, 159,740.10 and 64,766.97

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Solution

The fourth proportional to 115,748.37, 159,740.10 and 64,766.97 is: 89,382.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,748.37 : 159,740.10 = 64,766.97 : x
  2. Step 2: Convert to fraction form
    115,748.37/159,740.10 = 64,766.97/x
  3. Step 3: Cross multiply
    115,748.37x = 159,740.10 × 64,766.97
  4. Step 4: Simplify right side
    115,748.37x = 10,345,882,264.50
  5. Step 5: Solve for x
    x = 10,345,882,264.50/115,748.37
  6. Step 6: Final answer
    x = 89,382.53

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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.