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Finding the Fourth Proportional to 76,119.30, 114,178.95 and 73,008.90

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Solution

The fourth proportional to 76,119.30, 114,178.95 and 73,008.90 is: 109,513.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,119.30 : 114,178.95 = 73,008.90 : x
  2. Step 2: Convert to fraction form
    76,119.30/114,178.95 = 73,008.90/x
  3. Step 3: Cross multiply
    76,119.30x = 114,178.95 × 73,008.90
  4. Step 4: Simplify right side
    76,119.30x = 8,336,079,542.66
  5. Step 5: Solve for x
    x = 8,336,079,542.66/76,119.30
  6. Step 6: Final answer
    x = 109,513.35

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1.5x scale

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.