Home / 210,497.20-315,852.45-92,169.70

Finding the Fourth Proportional to 210,497.20, 315,852.45 and 92,169.70

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Solution

The fourth proportional to 210,497.20, 315,852.45 and 92,169.70 is: 138,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,497.20 : 315,852.45 = 92,169.70 : x
  2. Step 2: Convert to fraction form
    210,497.20/315,852.45 = 92,169.70/x
  3. Step 3: Cross multiply
    210,497.20x = 315,852.45 × 92,169.70
  4. Step 4: Simplify right side
    210,497.20x = 29,112,025,560.77
  5. Step 5: Solve for x
    x = 29,112,025,560.77/210,497.20
  6. Step 6: Final answer
    x = 138,301.25

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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.