Home / 119,087.64-178,399.26-66,338.28

Finding the Fourth Proportional to 119,087.64, 178,399.26 and 66,338.28

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Solution

The fourth proportional to 119,087.64, 178,399.26 and 66,338.28 is: 99,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,087.64 : 178,399.26 = 66,338.28 : x
  2. Step 2: Convert to fraction form
    119,087.64/178,399.26 = 66,338.28/x
  3. Step 3: Cross multiply
    119,087.64x = 178,399.26 × 66,338.28
  4. Step 4: Simplify right side
    119,087.64x = 11,834,700,061.67
  5. Step 5: Solve for x
    x = 11,834,700,061.67/119,087.64
  6. Step 6: Final answer
    x = 99,378.07

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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.