Home / 118,909.40-178,391.46-40,021.52

Finding the Fourth Proportional to 118,909.40, 178,391.46 and 40,021.52

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Solution

The fourth proportional to 118,909.40, 178,391.46 and 40,021.52 is: 60,041.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,909.40 : 178,391.46 = 40,021.52 : x
  2. Step 2: Convert to fraction form
    118,909.40/178,391.46 = 40,021.52/x
  3. Step 3: Cross multiply
    118,909.40x = 178,391.46 × 40,021.52
  4. Step 4: Simplify right side
    118,909.40x = 7,139,497,384.22
  5. Step 5: Solve for x
    x = 7,139,497,384.22/118,909.40
  6. Step 6: Final answer
    x = 60,041.49

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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.