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Finding the Fourth Proportional to 158,074.90, 218,147.68 and 86,459.16

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Solution

The fourth proportional to 158,074.90, 218,147.68 and 86,459.16 is: 119,316.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,074.90 : 218,147.68 = 86,459.16 : x
  2. Step 2: Convert to fraction form
    158,074.90/218,147.68 = 86,459.16/x
  3. Step 3: Cross multiply
    158,074.90x = 218,147.68 × 86,459.16
  4. Step 4: Simplify right side
    158,074.90x = 18,860,865,168.75
  5. Step 5: Solve for x
    x = 18,860,865,168.75/158,074.90
  6. Step 6: Final answer
    x = 119,316.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.