Home / 133,110.21-183,699.53-72,686.46

Finding the Fourth Proportional to 133,110.21, 183,699.53 and 72,686.46

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Solution

The fourth proportional to 133,110.21, 183,699.53 and 72,686.46 is: 100,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,110.21 : 183,699.53 = 72,686.46 : x
  2. Step 2: Convert to fraction form
    133,110.21/183,699.53 = 72,686.46/x
  3. Step 3: Cross multiply
    133,110.21x = 183,699.53 × 72,686.46
  4. Step 4: Simplify right side
    133,110.21x = 13,352,468,175.93
  5. Step 5: Solve for x
    x = 13,352,468,175.93/133,110.21
  6. Step 6: Final answer
    x = 100,311.37

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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.