Home / 140,685.53-194,138.37-77,011.02

Finding the Fourth Proportional to 140,685.53, 194,138.37 and 77,011.02

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Solution

The fourth proportional to 140,685.53, 194,138.37 and 77,011.02 is: 106,271.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,685.53 : 194,138.37 = 77,011.02 : x
  2. Step 2: Convert to fraction form
    140,685.53/194,138.37 = 77,011.02/x
  3. Step 3: Cross multiply
    140,685.53x = 194,138.37 × 77,011.02
  4. Step 4: Simplify right side
    140,685.53x = 14,950,793,894.84
  5. Step 5: Solve for x
    x = 14,950,793,894.84/140,685.53
  6. Step 6: Final answer
    x = 106,271.02

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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.