Home / 257,853.72-386,682.16-100,061.68

Finding the Fourth Proportional to 257,853.72, 386,682.16 and 100,061.68

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Solution

The fourth proportional to 257,853.72, 386,682.16 and 100,061.68 is: 150,054.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,853.72 : 386,682.16 = 100,061.68 : x
  2. Step 2: Convert to fraction form
    257,853.72/386,682.16 = 100,061.68/x
  3. Step 3: Cross multiply
    257,853.72x = 386,682.16 × 100,061.68
  4. Step 4: Simplify right side
    257,853.72x = 38,692,066,555.63
  5. Step 5: Solve for x
    x = 38,692,066,555.63/257,853.72
  6. Step 6: Final answer
    x = 150,054.33

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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.