Home / 189,705.60-284,563.26-89,842.32

Finding the Fourth Proportional to 189,705.60, 284,563.26 and 89,842.32

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Solution

The fourth proportional to 189,705.60, 284,563.26 and 89,842.32 is: 134,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,705.60 : 284,563.26 = 89,842.32 : x
  2. Step 2: Convert to fraction form
    189,705.60/284,563.26 = 89,842.32/x
  3. Step 3: Cross multiply
    189,705.60x = 284,563.26 × 89,842.32
  4. Step 4: Simplify right side
    189,705.60x = 25,565,823,465.16
  5. Step 5: Solve for x
    x = 25,565,823,465.16/189,705.60
  6. Step 6: Final answer
    x = 134,765.78

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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.