Home / 74,168.20-102,352.61-40,176.69

Finding the Fourth Proportional to 74,168.20, 102,352.61 and 40,176.69

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Solution

The fourth proportional to 74,168.20, 102,352.61 and 40,176.69 is: 55,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,168.20 : 102,352.61 = 40,176.69 : x
  2. Step 2: Convert to fraction form
    74,168.20/102,352.61 = 40,176.69/x
  3. Step 3: Cross multiply
    74,168.20x = 102,352.61 × 40,176.69
  4. Step 4: Simplify right side
    74,168.20x = 4,112,189,095.55
  5. Step 5: Solve for x
    x = 4,112,189,095.55/74,168.20
  6. Step 6: Final answer
    x = 55,444.10

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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.