Home / 142,268.24-195,763.56-137,939.60

Finding the Fourth Proportional to 142,268.24, 195,763.56 and 137,939.60

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Solution

The fourth proportional to 142,268.24, 195,763.56 and 137,939.60 is: 189,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,268.24 : 195,763.56 = 137,939.60 : x
  2. Step 2: Convert to fraction form
    142,268.24/195,763.56 = 137,939.60/x
  3. Step 3: Cross multiply
    142,268.24x = 195,763.56 × 137,939.60
  4. Step 4: Simplify right side
    142,268.24x = 27,003,547,160.98
  5. Step 5: Solve for x
    x = 27,003,547,160.98/142,268.24
  6. Step 6: Final answer
    x = 189,807.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.