Home / 145,238.56-200,425.21-80,706.13

Finding the Fourth Proportional to 145,238.56, 200,425.21 and 80,706.13

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Solution

The fourth proportional to 145,238.56, 200,425.21 and 80,706.13 is: 111,372.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,238.56 : 200,425.21 = 80,706.13 : x
  2. Step 2: Convert to fraction form
    145,238.56/200,425.21 = 80,706.13/x
  3. Step 3: Cross multiply
    145,238.56x = 200,425.21 × 80,706.13
  4. Step 4: Simplify right side
    145,238.56x = 16,175,543,053.54
  5. Step 5: Solve for x
    x = 16,175,543,053.54/145,238.56
  6. Step 6: Final answer
    x = 111,372.24

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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.