Home / 89,743.48-133,555.96-86,753.67

Finding the Fourth Proportional to 89,743.48, 133,555.96 and 86,753.67

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Solution

The fourth proportional to 89,743.48, 133,555.96 and 86,753.67 is: 129,106.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,743.48 : 133,555.96 = 86,753.67 : x
  2. Step 2: Convert to fraction form
    89,743.48/133,555.96 = 86,753.67/x
  3. Step 3: Cross multiply
    89,743.48x = 133,555.96 × 86,753.67
  4. Step 4: Simplify right side
    89,743.48x = 11,586,469,680.37
  5. Step 5: Solve for x
    x = 11,586,469,680.37/89,743.48
  6. Step 6: Final answer
    x = 129,106.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.