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Finding the Fourth Proportional to 189,434.40, 284,007.60 and 96,007.20

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Solution

The fourth proportional to 189,434.40, 284,007.60 and 96,007.20 is: 143,937.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,434.40 : 284,007.60 = 96,007.20 : x
  2. Step 2: Convert to fraction form
    189,434.40/284,007.60 = 96,007.20/x
  3. Step 3: Cross multiply
    189,434.40x = 284,007.60 × 96,007.20
  4. Step 4: Simplify right side
    189,434.40x = 27,266,774,454.72
  5. Step 5: Solve for x
    x = 27,266,774,454.72/189,434.40
  6. Step 6: Final answer
    x = 143,937.82

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