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Finding the Fourth Proportional to 118,191.94, 163,104.87 and 75,750.47

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Solution

The fourth proportional to 118,191.94, 163,104.87 and 75,750.47 is: 104,535.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,191.94 : 163,104.87 = 75,750.47 : x
  2. Step 2: Convert to fraction form
    118,191.94/163,104.87 = 75,750.47/x
  3. Step 3: Cross multiply
    118,191.94x = 163,104.87 × 75,750.47
  4. Step 4: Simplify right side
    118,191.94x = 12,355,270,641.97
  5. Step 5: Solve for x
    x = 12,355,270,641.97/118,191.94
  6. Step 6: Final answer
    x = 104,535.65

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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.