Home / 140,721.84-194,187.24-77,060.40

Finding the Fourth Proportional to 140,721.84, 194,187.24 and 77,060.40

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Solution

The fourth proportional to 140,721.84, 194,187.24 and 77,060.40 is: 106,338.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,721.84 : 194,187.24 = 77,060.40 : x
  2. Step 2: Convert to fraction form
    140,721.84/194,187.24 = 77,060.40/x
  3. Step 3: Cross multiply
    140,721.84x = 194,187.24 × 77,060.40
  4. Step 4: Simplify right side
    140,721.84x = 14,964,146,389.30
  5. Step 5: Solve for x
    x = 14,964,146,389.30/140,721.84
  6. Step 6: Final answer
    x = 106,338.48

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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.