Home / 189,928.80-284,504.40-96,487.20

Finding the Fourth Proportional to 189,928.80, 284,504.40 and 96,487.20

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Solution

The fourth proportional to 189,928.80, 284,504.40 and 96,487.20 is: 144,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,928.80 : 284,504.40 = 96,487.20 : x
  2. Step 2: Convert to fraction form
    189,928.80/284,504.40 = 96,487.20/x
  3. Step 3: Cross multiply
    189,928.80x = 284,504.40 × 96,487.20
  4. Step 4: Simplify right side
    189,928.80x = 27,451,032,943.68
  5. Step 5: Solve for x
    x = 27,451,032,943.68/189,928.80
  6. Step 6: Final answer
    x = 144,533.28

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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.