Home / 74,149.22-102,325.41-40,156.92

Finding the Fourth Proportional to 74,149.22, 102,325.41 and 40,156.92

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Solution

The fourth proportional to 74,149.22, 102,325.41 and 40,156.92 is: 55,416.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,149.22 : 102,325.41 = 40,156.92 : x
  2. Step 2: Convert to fraction form
    74,149.22/102,325.41 = 40,156.92/x
  3. Step 3: Cross multiply
    74,149.22x = 102,325.41 × 40,156.92
  4. Step 4: Simplify right side
    74,149.22x = 4,109,073,303.34
  5. Step 5: Solve for x
    x = 4,109,073,303.34/74,149.22
  6. Step 6: Final answer
    x = 55,416.28

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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.