Home / 140,725.84-194,192.76-77,064.40

Finding the Fourth Proportional to 140,725.84, 194,192.76 and 77,064.40

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Solution

The fourth proportional to 140,725.84, 194,192.76 and 77,064.40 is: 106,344.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,725.84 : 194,192.76 = 77,064.40 : x
  2. Step 2: Convert to fraction form
    140,725.84/194,192.76 = 77,064.40/x
  3. Step 3: Cross multiply
    140,725.84x = 194,192.76 × 77,064.40
  4. Step 4: Simplify right side
    140,725.84x = 14,965,348,533.74
  5. Step 5: Solve for x
    x = 14,965,348,533.74/140,725.84
  6. Step 6: Final answer
    x = 106,344.00

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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.