Home / 149,945.69-206,925.03-81,962.93

Finding the Fourth Proportional to 149,945.69, 206,925.03 and 81,962.93

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Solution

The fourth proportional to 149,945.69, 206,925.03 and 81,962.93 is: 113,108.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,945.69 : 206,925.03 = 81,962.93 : x
  2. Step 2: Convert to fraction form
    149,945.69/206,925.03 = 81,962.93/x
  3. Step 3: Cross multiply
    149,945.69x = 206,925.03 × 81,962.93
  4. Step 4: Simplify right side
    149,945.69x = 16,960,181,749.14
  5. Step 5: Solve for x
    x = 16,960,181,749.14/149,945.69
  6. Step 6: Final answer
    x = 113,108.84

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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.