Home / 210,944.79-316,337.40-68,752.80

Finding the Fourth Proportional to 210,944.79, 316,337.40 and 68,752.80

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Solution

The fourth proportional to 210,944.79, 316,337.40 and 68,752.80 is: 103,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,944.79 : 316,337.40 = 68,752.80 : x
  2. Step 2: Convert to fraction form
    210,944.79/316,337.40 = 68,752.80/x
  3. Step 3: Cross multiply
    210,944.79x = 316,337.40 × 68,752.80
  4. Step 4: Simplify right side
    210,944.79x = 21,749,081,994.72
  5. Step 5: Solve for x
    x = 21,749,081,994.72/210,944.79
  6. Step 6: Final answer
    x = 103,103.20

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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.