Home / 210,856.29-316,249.20-92,495.85

Finding the Fourth Proportional to 210,856.29, 316,249.20 and 92,495.85

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Solution

The fourth proportional to 210,856.29, 316,249.20 and 92,495.85 is: 138,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,856.29 : 316,249.20 = 92,495.85 : x
  2. Step 2: Convert to fraction form
    210,856.29/316,249.20 = 92,495.85/x
  3. Step 3: Cross multiply
    210,856.29x = 316,249.20 × 92,495.85
  4. Step 4: Simplify right side
    210,856.29x = 29,251,738,565.82
  5. Step 5: Solve for x
    x = 29,251,738,565.82/210,856.29
  6. Step 6: Final answer
    x = 138,728.32

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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.