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Finding the Fourth Proportional to 158,657.40, 237,791.70 and 69,816.60

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Solution

The fourth proportional to 158,657.40, 237,791.70 and 69,816.60 is: 104,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,657.40 : 237,791.70 = 69,816.60 : x
  2. Step 2: Convert to fraction form
    158,657.40/237,791.70 = 69,816.60/x
  3. Step 3: Cross multiply
    158,657.40x = 237,791.70 × 69,816.60
  4. Step 4: Simplify right side
    158,657.40x = 16,601,808,002.22
  5. Step 5: Solve for x
    x = 16,601,808,002.22/158,657.40
  6. Step 6: Final answer
    x = 104,639.36

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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.