Home / 89,203.69-123,254.09-86,010.67

Finding the Fourth Proportional to 89,203.69, 123,254.09 and 86,010.67

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Solution

The fourth proportional to 89,203.69, 123,254.09 and 86,010.67 is: 118,842.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,203.69 : 123,254.09 = 86,010.67 : x
  2. Step 2: Convert to fraction form
    89,203.69/123,254.09 = 86,010.67/x
  3. Step 3: Cross multiply
    89,203.69x = 123,254.09 × 86,010.67
  4. Step 4: Simplify right side
    89,203.69x = 10,601,166,861.14
  5. Step 5: Solve for x
    x = 10,601,166,861.14/89,203.69
  6. Step 6: Final answer
    x = 118,842.25

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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.