Home / 158,347.26-218,511.09-86,713.43

Finding the Fourth Proportional to 158,347.26, 218,511.09 and 86,713.43

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Solution

The fourth proportional to 158,347.26, 218,511.09 and 86,713.43 is: 119,660.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,347.26 : 218,511.09 = 86,713.43 : x
  2. Step 2: Convert to fraction form
    158,347.26/218,511.09 = 86,713.43/x
  3. Step 3: Cross multiply
    158,347.26x = 218,511.09 × 86,713.43
  4. Step 4: Simplify right side
    158,347.26x = 18,947,845,014.38
  5. Step 5: Solve for x
    x = 18,947,845,014.38/158,347.26
  6. Step 6: Final answer
    x = 119,660.08

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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.