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Finding the Fourth Proportional to 114,157.48, 157,498.90 and 66,371.80

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Solution

The fourth proportional to 114,157.48, 157,498.90 and 66,371.80 is: 91,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,157.48 : 157,498.90 = 66,371.80 : x
  2. Step 2: Convert to fraction form
    114,157.48/157,498.90 = 66,371.80/x
  3. Step 3: Cross multiply
    114,157.48x = 157,498.90 × 66,371.80
  4. Step 4: Simplify right side
    114,157.48x = 10,453,485,491.02
  5. Step 5: Solve for x
    x = 10,453,485,491.02/114,157.48
  6. Step 6: Final answer
    x = 91,570.75

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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.