Home / 136,391.98-188,213.62-75,136.16

Finding the Fourth Proportional to 136,391.98, 188,213.62 and 75,136.16

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Solution

The fourth proportional to 136,391.98, 188,213.62 and 75,136.16 is: 103,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,391.98 : 188,213.62 = 75,136.16 : x
  2. Step 2: Convert to fraction form
    136,391.98/188,213.62 = 75,136.16/x
  3. Step 3: Cross multiply
    136,391.98x = 188,213.62 × 75,136.16
  4. Step 4: Simplify right side
    136,391.98x = 14,141,648,666.50
  5. Step 5: Solve for x
    x = 14,141,648,666.50/136,391.98
  6. Step 6: Final answer
    x = 103,683.87

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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.