Home / 151,090.48-208,500.51-83,107.45

Finding the Fourth Proportional to 151,090.48, 208,500.51 and 83,107.45

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Solution

The fourth proportional to 151,090.48, 208,500.51 and 83,107.45 is: 114,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,090.48 : 208,500.51 = 83,107.45 : x
  2. Step 2: Convert to fraction form
    151,090.48/208,500.51 = 83,107.45/x
  3. Step 3: Cross multiply
    151,090.48x = 208,500.51 × 83,107.45
  4. Step 4: Simplify right side
    151,090.48x = 17,327,945,709.80
  5. Step 5: Solve for x
    x = 17,327,945,709.80/151,090.48
  6. Step 6: Final answer
    x = 114,685.89

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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.