Home / 189,605.84-284,233.04-71,355.60

Finding the Fourth Proportional to 189,605.84, 284,233.04 and 71,355.60

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Solution

The fourth proportional to 189,605.84, 284,233.04 and 71,355.60 is: 106,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,605.84 : 284,233.04 = 71,355.60 : x
  2. Step 2: Convert to fraction form
    189,605.84/284,233.04 = 71,355.60/x
  3. Step 3: Cross multiply
    189,605.84x = 284,233.04 × 71,355.60
  4. Step 4: Simplify right side
    189,605.84x = 20,281,619,109.02
  5. Step 5: Solve for x
    x = 20,281,619,109.02/189,605.84
  6. Step 6: Final answer
    x = 106,967.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.