Home / 100,012.34-149,136.24-99,112.25

Finding the Fourth Proportional to 100,012.34, 149,136.24 and 99,112.25

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Solution

The fourth proportional to 100,012.34, 149,136.24 and 99,112.25 is: 147,794.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,012.34 : 149,136.24 = 99,112.25 : x
  2. Step 2: Convert to fraction form
    100,012.34/149,136.24 = 99,112.25/x
  3. Step 3: Cross multiply
    100,012.34x = 149,136.24 × 99,112.25
  4. Step 4: Simplify right side
    100,012.34x = 14,781,228,302.94
  5. Step 5: Solve for x
    x = 14,781,228,302.94/100,012.34
  6. Step 6: Final answer
    x = 147,794.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.