Home / 133,051.13-183,610.56-90,683.67

Finding the Fourth Proportional to 133,051.13, 183,610.56 and 90,683.67

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Solution

The fourth proportional to 133,051.13, 183,610.56 and 90,683.67 is: 125,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,051.13 : 183,610.56 = 90,683.67 : x
  2. Step 2: Convert to fraction form
    133,051.13/183,610.56 = 90,683.67/x
  3. Step 3: Cross multiply
    133,051.13x = 183,610.56 × 90,683.67
  4. Step 4: Simplify right side
    133,051.13x = 16,650,479,431.56
  5. Step 5: Solve for x
    x = 16,650,479,431.56/133,051.13
  6. Step 6: Final answer
    x = 125,143.47

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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.