Home / 119,281.20-178,917.69-30,535.47

Finding the Fourth Proportional to 119,281.20, 178,917.69 and 30,535.47

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Solution

The fourth proportional to 119,281.20, 178,917.69 and 30,535.47 is: 45,802.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,281.20 : 178,917.69 = 30,535.47 : x
  2. Step 2: Convert to fraction form
    119,281.20/178,917.69 = 30,535.47/x
  3. Step 3: Cross multiply
    119,281.20x = 178,917.69 × 30,535.47
  4. Step 4: Simplify right side
    119,281.20x = 5,463,335,755.46
  5. Step 5: Solve for x
    x = 5,463,335,755.46/119,281.20
  6. Step 6: Final answer
    x = 45,802.15

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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.