Home / 142,310.70-196,407.54-137,637.36

Finding the Fourth Proportional to 142,310.70, 196,407.54 and 137,637.36

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Solution

The fourth proportional to 142,310.70, 196,407.54 and 137,637.36 is: 189,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,310.70 : 196,407.54 = 137,637.36 : x
  2. Step 2: Convert to fraction form
    142,310.70/196,407.54 = 137,637.36/x
  3. Step 3: Cross multiply
    142,310.70x = 196,407.54 × 137,637.36
  4. Step 4: Simplify right side
    142,310.70x = 27,033,015,289.69
  5. Step 5: Solve for x
    x = 27,033,015,289.69/142,310.70
  6. Step 6: Final answer
    x = 189,957.71

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1.5x scale

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.