Home / 266,152.23-399,291.26-86,237.35

Finding the Fourth Proportional to 266,152.23, 399,291.26 and 86,237.35

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Solution

The fourth proportional to 266,152.23, 399,291.26 and 86,237.35 is: 129,376.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,152.23 : 399,291.26 = 86,237.35 : x
  2. Step 2: Convert to fraction form
    266,152.23/399,291.26 = 86,237.35/x
  3. Step 3: Cross multiply
    266,152.23x = 399,291.26 × 86,237.35
  4. Step 4: Simplify right side
    266,152.23x = 34,433,821,050.93
  5. Step 5: Solve for x
    x = 34,433,821,050.93/266,152.23
  6. Step 6: Final answer
    x = 129,376.42

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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.