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Finding the Fourth Proportional to 118,104.94, 162,985.33 and 75,688.08

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Solution

The fourth proportional to 118,104.94, 162,985.33 and 75,688.08 is: 104,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,104.94 : 162,985.33 = 75,688.08 : x
  2. Step 2: Convert to fraction form
    118,104.94/162,985.33 = 75,688.08/x
  3. Step 3: Cross multiply
    118,104.94x = 162,985.33 × 75,688.08
  4. Step 4: Simplify right side
    118,104.94x = 12,336,046,695.87
  5. Step 5: Solve for x
    x = 12,336,046,695.87/118,104.94
  6. Step 6: Final answer
    x = 104,449.88

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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.