Home / 118,912.06-178,386.54-40,020.13

Finding the Fourth Proportional to 118,912.06, 178,386.54 and 40,020.13

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Solution

The fourth proportional to 118,912.06, 178,386.54 and 40,020.13 is: 60,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,912.06 : 178,386.54 = 40,020.13 : x
  2. Step 2: Convert to fraction form
    118,912.06/178,386.54 = 40,020.13/x
  3. Step 3: Cross multiply
    118,912.06x = 178,386.54 × 40,020.13
  4. Step 4: Simplify right side
    118,912.06x = 7,139,052,521.05
  5. Step 5: Solve for x
    x = 7,139,052,521.05/118,912.06
  6. Step 6: Final answer
    x = 60,036.40

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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.