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Finding the Fourth Proportional to 158,592.78, 218,860.23 and 86,968.08

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Solution

The fourth proportional to 158,592.78, 218,860.23 and 86,968.08 is: 120,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,592.78 : 218,860.23 = 86,968.08 : x
  2. Step 2: Convert to fraction form
    158,592.78/218,860.23 = 86,968.08/x
  3. Step 3: Cross multiply
    158,592.78x = 218,860.23 × 86,968.08
  4. Step 4: Simplify right side
    158,592.78x = 19,033,853,991.46
  5. Step 5: Solve for x
    x = 19,033,853,991.46/158,592.78
  6. Step 6: Final answer
    x = 120,017.15

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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.