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Finding the Fourth Proportional to 146,136.32, 201,668.64 and 79,068.32

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Solution

The fourth proportional to 146,136.32, 201,668.64 and 79,068.32 is: 109,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,136.32 : 201,668.64 = 79,068.32 : x
  2. Step 2: Convert to fraction form
    146,136.32/201,668.64 = 79,068.32/x
  3. Step 3: Cross multiply
    146,136.32x = 201,668.64 × 79,068.32
  4. Step 4: Simplify right side
    146,136.32x = 15,945,600,561.48
  5. Step 5: Solve for x
    x = 15,945,600,561.48/146,136.32
  6. Step 6: Final answer
    x = 109,114.56

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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.