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Finding the Fourth Proportional to 118,022.40, 176,774.40 and 91,519.20

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Solution

The fourth proportional to 118,022.40, 176,774.40 and 91,519.20 is: 137,077.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,022.40 : 176,774.40 = 91,519.20 : x
  2. Step 2: Convert to fraction form
    118,022.40/176,774.40 = 91,519.20/x
  3. Step 3: Cross multiply
    118,022.40x = 176,774.40 × 91,519.20
  4. Step 4: Simplify right side
    118,022.40x = 16,178,251,668.48
  5. Step 5: Solve for x
    x = 16,178,251,668.48/118,022.40
  6. Step 6: Final answer
    x = 137,077.81

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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.