Home / 140,935.74-194,488.47-77,274.06

Finding the Fourth Proportional to 140,935.74, 194,488.47 and 77,274.06

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Solution

The fourth proportional to 140,935.74, 194,488.47 and 77,274.06 is: 106,636.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,935.74 : 194,488.47 = 77,274.06 : x
  2. Step 2: Convert to fraction form
    140,935.74/194,488.47 = 77,274.06/x
  3. Step 3: Cross multiply
    140,935.74x = 194,488.47 × 77,274.06
  4. Step 4: Simplify right side
    140,935.74x = 15,028,913,700.09
  5. Step 5: Solve for x
    x = 15,028,913,700.09/140,935.74
  6. Step 6: Final answer
    x = 106,636.64

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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.