Home / 215,700.12-323,592.53-65,961.68

Finding the Fourth Proportional to 215,700.12, 323,592.53 and 65,961.68

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Solution

The fourth proportional to 215,700.12, 323,592.53 and 65,961.68 is: 98,955.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,700.12 : 323,592.53 = 65,961.68 : x
  2. Step 2: Convert to fraction form
    215,700.12/323,592.53 = 65,961.68/x
  3. Step 3: Cross multiply
    215,700.12x = 323,592.53 × 65,961.68
  4. Step 4: Simplify right side
    215,700.12x = 21,344,704,966.48
  5. Step 5: Solve for x
    x = 21,344,704,966.48/215,700.12
  6. Step 6: Final answer
    x = 98,955.46

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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.