Home / 119,089.14-178,401.51-66,339.78

Finding the Fourth Proportional to 119,089.14, 178,401.51 and 66,339.78

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Solution

The fourth proportional to 119,089.14, 178,401.51 and 66,339.78 is: 99,380.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,089.14 : 178,401.51 = 66,339.78 : x
  2. Step 2: Convert to fraction form
    119,089.14/178,401.51 = 66,339.78/x
  3. Step 3: Cross multiply
    119,089.14x = 178,401.51 × 66,339.78
  4. Step 4: Simplify right side
    119,089.14x = 11,835,116,925.07
  5. Step 5: Solve for x
    x = 11,835,116,925.07/119,089.14
  6. Step 6: Final answer
    x = 99,380.32

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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.