Home / 189,700.25-284,690.55-89,860.85

Finding the Fourth Proportional to 189,700.25, 284,690.55 and 89,860.85

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Solution

The fourth proportional to 189,700.25, 284,690.55 and 89,860.85 is: 134,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,700.25 : 284,690.55 = 89,860.85 : x
  2. Step 2: Convert to fraction form
    189,700.25/284,690.55 = 89,860.85/x
  3. Step 3: Cross multiply
    189,700.25x = 284,690.55 × 89,860.85
  4. Step 4: Simplify right side
    189,700.25x = 25,582,534,809.97
  5. Step 5: Solve for x
    x = 25,582,534,809.97/189,700.25
  6. Step 6: Final answer
    x = 134,857.68

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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.