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Finding the Fourth Proportional to 118,440.80, 163,450.32 and 70,684.88

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Solution

The fourth proportional to 118,440.80, 163,450.32 and 70,684.88 is: 97,546.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,440.80 : 163,450.32 = 70,684.88 : x
  2. Step 2: Convert to fraction form
    118,440.80/163,450.32 = 70,684.88/x
  3. Step 3: Cross multiply
    118,440.80x = 163,450.32 × 70,684.88
  4. Step 4: Simplify right side
    118,440.80x = 11,553,466,255.16
  5. Step 5: Solve for x
    x = 11,553,466,255.16/118,440.80
  6. Step 6: Final answer
    x = 97,546.34

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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.