Home / 129,445.41-194,214.87-45,218.01

Finding the Fourth Proportional to 129,445.41, 194,214.87 and 45,218.01

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Solution

The fourth proportional to 129,445.41, 194,214.87 and 45,218.01 is: 67,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,445.41 : 194,214.87 = 45,218.01 : x
  2. Step 2: Convert to fraction form
    129,445.41/194,214.87 = 45,218.01/x
  3. Step 3: Cross multiply
    129,445.41x = 194,214.87 × 45,218.01
  4. Step 4: Simplify right side
    129,445.41x = 8,782,009,933.81
  5. Step 5: Solve for x
    x = 8,782,009,933.81/129,445.41
  6. Step 6: Final answer
    x = 67,843.35

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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.