Home / 384,126.12-576,210.78-103,665.24

Finding the Fourth Proportional to 384,126.12, 576,210.78 and 103,665.24

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Solution

The fourth proportional to 384,126.12, 576,210.78 and 103,665.24 is: 155,503.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,126.12 : 576,210.78 = 103,665.24 : x
  2. Step 2: Convert to fraction form
    384,126.12/576,210.78 = 103,665.24/x
  3. Step 3: Cross multiply
    384,126.12x = 576,210.78 × 103,665.24
  4. Step 4: Simplify right side
    384,126.12x = 59,733,028,799.29
  5. Step 5: Solve for x
    x = 59,733,028,799.29/384,126.12
  6. Step 6: Final answer
    x = 155,503.69

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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.