Home / 119,176.63-178,764.78-30,430.15

Finding the Fourth Proportional to 119,176.63, 178,764.78 and 30,430.15

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Solution

The fourth proportional to 119,176.63, 178,764.78 and 30,430.15 is: 45,645.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,176.63 : 178,764.78 = 30,430.15 : x
  2. Step 2: Convert to fraction form
    119,176.63/178,764.78 = 30,430.15/x
  3. Step 3: Cross multiply
    119,176.63x = 178,764.78 × 30,430.15
  4. Step 4: Simplify right side
    119,176.63x = 5,439,839,070.12
  5. Step 5: Solve for x
    x = 5,439,839,070.12/119,176.63
  6. Step 6: Final answer
    x = 45,645.18

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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.