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Finding the Fourth Proportional to 151,126.80, 208,559.50 and 83,150.80

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Solution

The fourth proportional to 151,126.80, 208,559.50 and 83,150.80 is: 114,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,126.80 : 208,559.50 = 83,150.80 : x
  2. Step 2: Convert to fraction form
    151,126.80/208,559.50 = 83,150.80/x
  3. Step 3: Cross multiply
    151,126.80x = 208,559.50 × 83,150.80
  4. Step 4: Simplify right side
    151,126.80x = 17,341,889,272.60
  5. Step 5: Solve for x
    x = 17,341,889,272.60/151,126.80
  6. Step 6: Final answer
    x = 114,750.59

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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.