Home / 112,647.08-155,442.34-67,316.04

Finding the Fourth Proportional to 112,647.08, 155,442.34 and 67,316.04

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Solution

The fourth proportional to 112,647.08, 155,442.34 and 67,316.04 is: 92,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,647.08 : 155,442.34 = 67,316.04 : x
  2. Step 2: Convert to fraction form
    112,647.08/155,442.34 = 67,316.04/x
  3. Step 3: Cross multiply
    112,647.08x = 155,442.34 × 67,316.04
  4. Step 4: Simplify right side
    112,647.08x = 10,463,762,861.28
  5. Step 5: Solve for x
    x = 10,463,762,861.28/112,647.08
  6. Step 6: Final answer
    x = 92,889.78

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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.