Home / 151,838.47-209,538.67-83,857.17

Finding the Fourth Proportional to 151,838.47, 209,538.67 and 83,857.17

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Solution

The fourth proportional to 151,838.47, 209,538.67 and 83,857.17 is: 115,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,838.47 : 209,538.67 = 83,857.17 : x
  2. Step 2: Convert to fraction form
    151,838.47/209,538.67 = 83,857.17/x
  3. Step 3: Cross multiply
    151,838.47x = 209,538.67 × 83,857.17
  4. Step 4: Simplify right side
    151,838.47x = 17,571,320,840.97
  5. Step 5: Solve for x
    x = 17,571,320,840.97/151,838.47
  6. Step 6: Final answer
    x = 115,723.77

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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.