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Finding the Fourth Proportional to 158,640.60, 237,903.30 and 79,728.60

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Solution

The fourth proportional to 158,640.60, 237,903.30 and 79,728.60 is: 119,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,640.60 : 237,903.30 = 79,728.60 : x
  2. Step 2: Convert to fraction form
    158,640.60/237,903.30 = 79,728.60/x
  3. Step 3: Cross multiply
    158,640.60x = 237,903.30 × 79,728.60
  4. Step 4: Simplify right side
    158,640.60x = 18,967,697,044.38
  5. Step 5: Solve for x
    x = 18,967,697,044.38/158,640.60
  6. Step 6: Final answer
    x = 119,563.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.