Home / 102,031.81-140,797.08-56,706.85

Finding the Fourth Proportional to 102,031.81, 140,797.08 and 56,706.85

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Solution

The fourth proportional to 102,031.81, 140,797.08 and 56,706.85 is: 78,251.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,031.81 : 140,797.08 = 56,706.85 : x
  2. Step 2: Convert to fraction form
    102,031.81/140,797.08 = 56,706.85/x
  3. Step 3: Cross multiply
    102,031.81x = 140,797.08 × 56,706.85
  4. Step 4: Simplify right side
    102,031.81x = 7,984,158,896.00
  5. Step 5: Solve for x
    x = 7,984,158,896.00/102,031.81
  6. Step 6: Final answer
    x = 78,251.66

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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.