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Finding the Fourth Proportional to 157,937.57, 237,971.94 and 130,472.90

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Solution

The fourth proportional to 157,937.57, 237,971.94 and 130,472.90 is: 196,589.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,937.57 : 237,971.94 = 130,472.90 : x
  2. Step 2: Convert to fraction form
    157,937.57/237,971.94 = 130,472.90/x
  3. Step 3: Cross multiply
    157,937.57x = 237,971.94 × 130,472.90
  4. Step 4: Simplify right side
    157,937.57x = 31,048,889,130.43
  5. Step 5: Solve for x
    x = 31,048,889,130.43/157,937.57
  6. Step 6: Final answer
    x = 196,589.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.