Home / 162,206.29-243,128.76-67,383.64

Finding the Fourth Proportional to 162,206.29, 243,128.76 and 67,383.64

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Solution

The fourth proportional to 162,206.29, 243,128.76 and 67,383.64 is: 101,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,206.29 : 243,128.76 = 67,383.64 : x
  2. Step 2: Convert to fraction form
    162,206.29/243,128.76 = 67,383.64/x
  3. Step 3: Cross multiply
    162,206.29x = 243,128.76 × 67,383.64
  4. Step 4: Simplify right side
    162,206.29x = 16,382,900,837.49
  5. Step 5: Solve for x
    x = 16,382,900,837.49/162,206.29
  6. Step 6: Final answer
    x = 101,000.40

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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.