Home / 154,568.13-212,939.87-145,267.91

Finding the Fourth Proportional to 154,568.13, 212,939.87 and 145,267.91

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Solution

The fourth proportional to 154,568.13, 212,939.87 and 145,267.91 is: 200,127.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,568.13 : 212,939.87 = 145,267.91 : x
  2. Step 2: Convert to fraction form
    154,568.13/212,939.87 = 145,267.91/x
  3. Step 3: Cross multiply
    154,568.13x = 212,939.87 × 145,267.91
  4. Step 4: Simplify right side
    154,568.13x = 30,933,329,676.58
  5. Step 5: Solve for x
    x = 30,933,329,676.58/154,568.13
  6. Step 6: Final answer
    x = 200,127.48

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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.