Home / 133,110.28-183,699.64-72,686.56

Finding the Fourth Proportional to 133,110.28, 183,699.64 and 72,686.56

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Solution

The fourth proportional to 133,110.28, 183,699.64 and 72,686.56 is: 100,311.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,110.28 : 183,699.64 = 72,686.56 : x
  2. Step 2: Convert to fraction form
    133,110.28/183,699.64 = 72,686.56/x
  3. Step 3: Cross multiply
    133,110.28x = 183,699.64 × 72,686.56
  4. Step 4: Simplify right side
    133,110.28x = 13,352,494,904.84
  5. Step 5: Solve for x
    x = 13,352,494,904.84/133,110.28
  6. Step 6: Final answer
    x = 100,311.52

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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.