Home / 112,550.18-155,245.55-67,192.74

Finding the Fourth Proportional to 112,550.18, 155,245.55 and 67,192.74

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Solution

The fourth proportional to 112,550.18, 155,245.55 and 67,192.74 is: 92,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,550.18 : 155,245.55 = 67,192.74 : x
  2. Step 2: Convert to fraction form
    112,550.18/155,245.55 = 67,192.74/x
  3. Step 3: Cross multiply
    112,550.18x = 155,245.55 × 67,192.74
  4. Step 4: Simplify right side
    112,550.18x = 10,431,373,541.34
  5. Step 5: Solve for x
    x = 10,431,373,541.34/112,550.18
  6. Step 6: Final answer
    x = 92,681.98

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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.