Home / 306,109.12-459,167.53-81,468.17

Finding the Fourth Proportional to 306,109.12, 459,167.53 and 81,468.17

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Solution

The fourth proportional to 306,109.12, 459,167.53 and 81,468.17 is: 122,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,109.12 : 459,167.53 = 81,468.17 : x
  2. Step 2: Convert to fraction form
    306,109.12/459,167.53 = 81,468.17/x
  3. Step 3: Cross multiply
    306,109.12x = 459,167.53 × 81,468.17
  4. Step 4: Simplify right side
    306,109.12x = 37,407,538,392.52
  5. Step 5: Solve for x
    x = 37,407,538,392.52/306,109.12
  6. Step 6: Final answer
    x = 122,203.28

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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.