Home / 266,683.42-399,980.34-89,190.16

Finding the Fourth Proportional to 266,683.42, 399,980.34 and 89,190.16

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Solution

The fourth proportional to 266,683.42, 399,980.34 and 89,190.16 is: 133,770.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,683.42 : 399,980.34 = 89,190.16 : x
  2. Step 2: Convert to fraction form
    266,683.42/399,980.34 = 89,190.16/x
  3. Step 3: Cross multiply
    266,683.42x = 399,980.34 × 89,190.16
  4. Step 4: Simplify right side
    266,683.42x = 35,674,310,521.45
  5. Step 5: Solve for x
    x = 35,674,310,521.45/266,683.42
  6. Step 6: Final answer
    x = 133,770.26

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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.