Home / 102,209.70-141,053.42-56,889.58

Finding the Fourth Proportional to 102,209.70, 141,053.42 and 56,889.58

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Solution

The fourth proportional to 102,209.70, 141,053.42 and 56,889.58 is: 78,509.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,209.70 : 141,053.42 = 56,889.58 : x
  2. Step 2: Convert to fraction form
    102,209.70/141,053.42 = 56,889.58/x
  3. Step 3: Cross multiply
    102,209.70x = 141,053.42 × 56,889.58
  4. Step 4: Simplify right side
    102,209.70x = 8,024,469,821.36
  5. Step 5: Solve for x
    x = 8,024,469,821.36/102,209.70
  6. Step 6: Final answer
    x = 78,509.87

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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.