Home / 140,681.84-194,133.66-77,007.56

Finding the Fourth Proportional to 140,681.84, 194,133.66 and 77,007.56

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Solution

The fourth proportional to 140,681.84, 194,133.66 and 77,007.56 is: 106,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,681.84 : 194,133.66 = 77,007.56 : x
  2. Step 2: Convert to fraction form
    140,681.84/194,133.66 = 77,007.56/x
  3. Step 3: Cross multiply
    140,681.84x = 194,133.66 × 77,007.56
  4. Step 4: Simplify right side
    140,681.84x = 14,949,759,470.47
  5. Step 5: Solve for x
    x = 14,949,759,470.47/140,681.84
  6. Step 6: Final answer
    x = 106,266.45

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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.