Home / 133,057.16-183,615.93-72,628.79

Finding the Fourth Proportional to 133,057.16, 183,615.93 and 72,628.79

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Solution

The fourth proportional to 133,057.16, 183,615.93 and 72,628.79 is: 100,226.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,057.16 : 183,615.93 = 72,628.79 : x
  2. Step 2: Convert to fraction form
    133,057.16/183,615.93 = 72,628.79/x
  3. Step 3: Cross multiply
    133,057.16x = 183,615.93 × 72,628.79
  4. Step 4: Simplify right side
    133,057.16x = 13,335,802,820.62
  5. Step 5: Solve for x
    x = 13,335,802,820.62/133,057.16
  6. Step 6: Final answer
    x = 100,226.12

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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.