Home / 118,753.90-178,130.85-30,007.66

Finding the Fourth Proportional to 118,753.90, 178,130.85 and 30,007.66

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Solution

The fourth proportional to 118,753.90, 178,130.85 and 30,007.66 is: 45,011.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,753.90 : 178,130.85 = 30,007.66 : x
  2. Step 2: Convert to fraction form
    118,753.90/178,130.85 = 30,007.66/x
  3. Step 3: Cross multiply
    118,753.90x = 178,130.85 × 30,007.66
  4. Step 4: Simplify right side
    118,753.90x = 5,345,289,982.31
  5. Step 5: Solve for x
    x = 5,345,289,982.31/118,753.90
  6. Step 6: Final answer
    x = 45,011.49

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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.