Home / 90,738.98-136,136.10-46,396.88

Finding the Fourth Proportional to 90,738.98, 136,136.10 and 46,396.88

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Solution

The fourth proportional to 90,738.98, 136,136.10 and 46,396.88 is: 69,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,738.98 : 136,136.10 = 46,396.88 : x
  2. Step 2: Convert to fraction form
    90,738.98/136,136.10 = 46,396.88/x
  3. Step 3: Cross multiply
    90,738.98x = 136,136.10 × 46,396.88
  4. Step 4: Simplify right side
    90,738.98x = 6,316,290,295.37
  5. Step 5: Solve for x
    x = 6,316,290,295.37/90,738.98
  6. Step 6: Final answer
    x = 69,609.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.