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Finding the Fourth Proportional to 118,658.76, 163,708.35 and 67,634.69

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Solution

The fourth proportional to 118,658.76, 163,708.35 and 67,634.69 is: 93,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,658.76 : 163,708.35 = 67,634.69 : x
  2. Step 2: Convert to fraction form
    118,658.76/163,708.35 = 67,634.69/x
  3. Step 3: Cross multiply
    118,658.76x = 163,708.35 × 67,634.69
  4. Step 4: Simplify right side
    118,658.76x = 11,072,362,684.12
  5. Step 5: Solve for x
    x = 11,072,362,684.12/118,658.76
  6. Step 6: Final answer
    x = 93,312.64

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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.