Home / 119,178.11-178,767.07-30,431.63

Finding the Fourth Proportional to 119,178.11, 178,767.07 and 30,431.63

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Solution

The fourth proportional to 119,178.11, 178,767.07 and 30,431.63 is: 45,647.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,178.11 : 178,767.07 = 30,431.63 : x
  2. Step 2: Convert to fraction form
    119,178.11/178,767.07 = 30,431.63/x
  3. Step 3: Cross multiply
    119,178.11x = 178,767.07 × 30,431.63
  4. Step 4: Simplify right side
    119,178.11x = 5,440,173,330.42
  5. Step 5: Solve for x
    x = 5,440,173,330.42/119,178.11
  6. Step 6: Final answer
    x = 45,647.42

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1.5x scale

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.