Home / 118,825.61-178,238.54-30,079.11

Finding the Fourth Proportional to 118,825.61, 178,238.54 and 30,079.11

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Solution

The fourth proportional to 118,825.61, 178,238.54 and 30,079.11 is: 45,118.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,825.61 : 178,238.54 = 30,079.11 : x
  2. Step 2: Convert to fraction form
    118,825.61/178,238.54 = 30,079.11/x
  3. Step 3: Cross multiply
    118,825.61x = 178,238.54 × 30,079.11
  4. Step 4: Simplify right side
    118,825.61x = 5,361,255,890.60
  5. Step 5: Solve for x
    x = 5,361,255,890.60/118,825.61
  6. Step 6: Final answer
    x = 45,118.69

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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.