Home / 118,771.52-163,864-67,747.60

Finding the Fourth Proportional to 118,771.52, 163,864 and 67,747.60

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Solution

The fourth proportional to 118,771.52, 163,864 and 67,747.60 is: 93,468.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,771.52 : 163,864 = 67,747.60 : x
  2. Step 2: Convert to fraction form
    118,771.52/163,864 = 67,747.60/x
  3. Step 3: Cross multiply
    118,771.52x = 163,864 × 67,747.60
  4. Step 4: Simplify right side
    118,771.52x = 11,101,392,726.40
  5. Step 5: Solve for x
    x = 11,101,392,726.40/118,771.52
  6. Step 6: Final answer
    x = 93,468.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.