Home / 151,222.80-208,663.05-86,680.17

Finding the Fourth Proportional to 151,222.80, 208,663.05 and 86,680.17

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Solution

The fourth proportional to 151,222.80, 208,663.05 and 86,680.17 is: 119,604.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,222.80 : 208,663.05 = 86,680.17 : x
  2. Step 2: Convert to fraction form
    151,222.80/208,663.05 = 86,680.17/x
  3. Step 3: Cross multiply
    151,222.80x = 208,663.05 × 86,680.17
  4. Step 4: Simplify right side
    151,222.80x = 18,086,948,646.72
  5. Step 5: Solve for x
    x = 18,086,948,646.72/151,222.80
  6. Step 6: Final answer
    x = 119,604.64

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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.