Home / 102,012.14-140,776.23-56,072.84

Finding the Fourth Proportional to 102,012.14, 140,776.23 and 56,072.84

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Solution

The fourth proportional to 102,012.14, 140,776.23 and 56,072.84 is: 77,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,012.14 : 140,776.23 = 56,072.84 : x
  2. Step 2: Convert to fraction form
    102,012.14/140,776.23 = 56,072.84/x
  3. Step 3: Cross multiply
    102,012.14x = 140,776.23 × 56,072.84
  4. Step 4: Simplify right side
    102,012.14x = 7,893,723,020.59
  5. Step 5: Solve for x
    x = 7,893,723,020.59/102,012.14
  6. Step 6: Final answer
    x = 77,380.23

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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.