Home / 118,716.42-178,073.12-47,670.50

Finding the Fourth Proportional to 118,716.42, 178,073.12 and 47,670.50

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Solution

The fourth proportional to 118,716.42, 178,073.12 and 47,670.50 is: 71,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,716.42 : 178,073.12 = 47,670.50 : x
  2. Step 2: Convert to fraction form
    118,716.42/178,073.12 = 47,670.50/x
  3. Step 3: Cross multiply
    118,716.42x = 178,073.12 × 47,670.50
  4. Step 4: Simplify right side
    118,716.42x = 8,488,834,666.96
  5. Step 5: Solve for x
    x = 8,488,834,666.96/118,716.42
  6. Step 6: Final answer
    x = 71,505.14

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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.