Home / 115,767.16-159,752.10-64,770.04

Finding the Fourth Proportional to 115,767.16, 159,752.10 and 64,770.04

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Solution

The fourth proportional to 115,767.16, 159,752.10 and 64,770.04 is: 89,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,767.16 : 159,752.10 = 64,770.04 : x
  2. Step 2: Convert to fraction form
    115,767.16/159,752.10 = 64,770.04/x
  3. Step 3: Cross multiply
    115,767.16x = 159,752.10 × 64,770.04
  4. Step 4: Simplify right side
    115,767.16x = 10,347,149,907.08
  5. Step 5: Solve for x
    x = 10,347,149,907.08/115,767.16
  6. Step 6: Final answer
    x = 89,378.97

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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.