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Finding the Fourth Proportional to 158,464.58, 218,681.43 and 86,847.26

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Solution

The fourth proportional to 158,464.58, 218,681.43 and 86,847.26 is: 119,849.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,464.58 : 218,681.43 = 86,847.26 : x
  2. Step 2: Convert to fraction form
    158,464.58/218,681.43 = 86,847.26/x
  3. Step 3: Cross multiply
    158,464.58x = 218,681.43 × 86,847.26
  4. Step 4: Simplify right side
    158,464.58x = 18,991,883,008.38
  5. Step 5: Solve for x
    x = 18,991,883,008.38/158,464.58
  6. Step 6: Final answer
    x = 119,849.39

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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.