Home / 118,728.12-163,812.78-70,960.44

Finding the Fourth Proportional to 118,728.12, 163,812.78 and 70,960.44

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Solution

The fourth proportional to 118,728.12, 163,812.78 and 70,960.44 is: 97,906.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,728.12 : 163,812.78 = 70,960.44 : x
  2. Step 2: Convert to fraction form
    118,728.12/163,812.78 = 70,960.44/x
  3. Step 3: Cross multiply
    118,728.12x = 163,812.78 × 70,960.44
  4. Step 4: Simplify right side
    118,728.12x = 11,624,226,946.42
  5. Step 5: Solve for x
    x = 11,624,226,946.42/118,728.12
  6. Step 6: Final answer
    x = 97,906.27

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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.