Home / 151,385.44-208,909.20-84,316

Finding the Fourth Proportional to 151,385.44, 208,909.20 and 84,316

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Solution

The fourth proportional to 151,385.44, 208,909.20 and 84,316 is: 116,354.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,385.44 : 208,909.20 = 84,316 : x
  2. Step 2: Convert to fraction form
    151,385.44/208,909.20 = 84,316/x
  3. Step 3: Cross multiply
    151,385.44x = 208,909.20 × 84,316
  4. Step 4: Simplify right side
    151,385.44x = 17,614,388,107.20
  5. Step 5: Solve for x
    x = 17,614,388,107.20/151,385.44
  6. Step 6: Final answer
    x = 116,354.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.