Home / 102,740.20-154,088.70-43,577.80

Finding the Fourth Proportional to 102,740.20, 154,088.70 and 43,577.80

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Solution

The fourth proportional to 102,740.20, 154,088.70 and 43,577.80 is: 65,357.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,740.20 : 154,088.70 = 43,577.80 : x
  2. Step 2: Convert to fraction form
    102,740.20/154,088.70 = 43,577.80/x
  3. Step 3: Cross multiply
    102,740.20x = 154,088.70 × 43,577.80
  4. Step 4: Simplify right side
    102,740.20x = 6,714,846,550.86
  5. Step 5: Solve for x
    x = 6,714,846,550.86/102,740.20
  6. Step 6: Final answer
    x = 65,357.54

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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.