Home / 78,240.01-117,168.61-70,658.41

Finding the Fourth Proportional to 78,240.01, 117,168.61 and 70,658.41

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Solution

The fourth proportional to 78,240.01, 117,168.61 and 70,658.41 is: 105,814.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,240.01 : 117,168.61 = 70,658.41 : x
  2. Step 2: Convert to fraction form
    78,240.01/117,168.61 = 70,658.41/x
  3. Step 3: Cross multiply
    78,240.01x = 117,168.61 × 70,658.41
  4. Step 4: Simplify right side
    78,240.01x = 8,278,947,684.51
  5. Step 5: Solve for x
    x = 8,278,947,684.51/78,240.01
  6. Step 6: Final answer
    x = 105,814.76

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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.