Home / 134,920.76-186,189.44-74,490.10

Finding the Fourth Proportional to 134,920.76, 186,189.44 and 74,490.10

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Solution

The fourth proportional to 134,920.76, 186,189.44 and 74,490.10 is: 102,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,920.76 : 186,189.44 = 74,490.10 : x
  2. Step 2: Convert to fraction form
    134,920.76/186,189.44 = 74,490.10/x
  3. Step 3: Cross multiply
    134,920.76x = 186,189.44 × 74,490.10
  4. Step 4: Simplify right side
    134,920.76x = 13,869,269,166.62
  5. Step 5: Solve for x
    x = 13,869,269,166.62/134,920.76
  6. Step 6: Final answer
    x = 102,795.67

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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.