Home / 118,912.19-178,386.71-40,020.26

Finding the Fourth Proportional to 118,912.19, 178,386.71 and 40,020.26

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Solution

The fourth proportional to 118,912.19, 178,386.71 and 40,020.26 is: 60,036.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,912.19 : 178,386.71 = 40,020.26 : x
  2. Step 2: Convert to fraction form
    118,912.19/178,386.71 = 40,020.26/x
  3. Step 3: Cross multiply
    118,912.19x = 178,386.71 × 40,020.26
  4. Step 4: Simplify right side
    118,912.19x = 7,139,081,422.71
  5. Step 5: Solve for x
    x = 7,139,081,422.71/118,912.19
  6. Step 6: Final answer
    x = 60,036.58

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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.