Home / 112,778.38-169,114.58-65,406.93

Finding the Fourth Proportional to 112,778.38, 169,114.58 and 65,406.93

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Solution

The fourth proportional to 112,778.38, 169,114.58 and 65,406.93 is: 98,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,778.38 : 169,114.58 = 65,406.93 : x
  2. Step 2: Convert to fraction form
    112,778.38/169,114.58 = 65,406.93/x
  3. Step 3: Cross multiply
    112,778.38x = 169,114.58 × 65,406.93
  4. Step 4: Simplify right side
    112,778.38x = 11,061,265,496.04
  5. Step 5: Solve for x
    x = 11,061,265,496.04/112,778.38
  6. Step 6: Final answer
    x = 98,079.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.