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Finding the Fourth Proportional to 158,655.34, 218,943.29 and 86,057.94

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Solution

The fourth proportional to 158,655.34, 218,943.29 and 86,057.94 is: 118,759.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,655.34 : 218,943.29 = 86,057.94 : x
  2. Step 2: Convert to fraction form
    158,655.34/218,943.29 = 86,057.94/x
  3. Step 3: Cross multiply
    158,655.34x = 218,943.29 × 86,057.94
  4. Step 4: Simplify right side
    158,655.34x = 18,841,809,066.33
  5. Step 5: Solve for x
    x = 18,841,809,066.33/158,655.34
  6. Step 6: Final answer
    x = 118,759.37

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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.