Home / 189,789.06-284,461.29-77,399.10

Finding the Fourth Proportional to 189,789.06, 284,461.29 and 77,399.10

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Solution

The fourth proportional to 189,789.06, 284,461.29 and 77,399.10 is: 116,007.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,789.06 : 284,461.29 = 77,399.10 : x
  2. Step 2: Convert to fraction form
    189,789.06/284,461.29 = 77,399.10/x
  3. Step 3: Cross multiply
    189,789.06x = 284,461.29 × 77,399.10
  4. Step 4: Simplify right side
    189,789.06x = 22,017,047,830.84
  5. Step 5: Solve for x
    x = 22,017,047,830.84/189,789.06
  6. Step 6: Final answer
    x = 116,007.99

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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.