Home / 142,918.71-196,732.80-123,528.79

Finding the Fourth Proportional to 142,918.71, 196,732.80 and 123,528.79

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Solution

The fourth proportional to 142,918.71, 196,732.80 and 123,528.79 is: 170,041.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,918.71 : 196,732.80 = 123,528.79 : x
  2. Step 2: Convert to fraction form
    142,918.71/196,732.80 = 123,528.79/x
  3. Step 3: Cross multiply
    142,918.71x = 196,732.80 × 123,528.79
  4. Step 4: Simplify right side
    142,918.71x = 24,302,164,737.31
  5. Step 5: Solve for x
    x = 24,302,164,737.31/142,918.71
  6. Step 6: Final answer
    x = 170,041.87

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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.