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Finding the Fourth Proportional to 118,276.66, 163,280.37 and 75,298.87

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Solution

The fourth proportional to 118,276.66, 163,280.37 and 75,298.87 is: 103,949.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,276.66 : 163,280.37 = 75,298.87 : x
  2. Step 2: Convert to fraction form
    118,276.66/163,280.37 = 75,298.87/x
  3. Step 3: Cross multiply
    118,276.66x = 163,280.37 × 75,298.87
  4. Step 4: Simplify right side
    118,276.66x = 12,294,827,354.18
  5. Step 5: Solve for x
    x = 12,294,827,354.18/118,276.66
  6. Step 6: Final answer
    x = 103,949.73

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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.