Home / 140,675.71-194,132.49-77,013.51

Finding the Fourth Proportional to 140,675.71, 194,132.49 and 77,013.51

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Solution

The fourth proportional to 140,675.71, 194,132.49 and 77,013.51 is: 106,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,675.71 : 194,132.49 = 77,013.51 : x
  2. Step 2: Convert to fraction form
    140,675.71/194,132.49 = 77,013.51/x
  3. Step 3: Cross multiply
    140,675.71x = 194,132.49 × 77,013.51
  4. Step 4: Simplify right side
    140,675.71x = 14,950,824,459.94
  5. Step 5: Solve for x
    x = 14,950,824,459.94/140,675.71
  6. Step 6: Final answer
    x = 106,278.65

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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.