Home / 189,850.05-284,692.04-90,038.79

Finding the Fourth Proportional to 189,850.05, 284,692.04 and 90,038.79

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Solution

The fourth proportional to 189,850.05, 284,692.04 and 90,038.79 is: 135,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,850.05 : 284,692.04 = 90,038.79 : x
  2. Step 2: Convert to fraction form
    189,850.05/284,692.04 = 90,038.79/x
  3. Step 3: Cross multiply
    189,850.05x = 284,692.04 × 90,038.79
  4. Step 4: Simplify right side
    189,850.05x = 25,633,326,944.92
  5. Step 5: Solve for x
    x = 25,633,326,944.92/189,850.05
  6. Step 6: Final answer
    x = 135,018.80

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1.5x scale

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.