Home / 133,039.16-183,592.61-72,609.31

Finding the Fourth Proportional to 133,039.16, 183,592.61 and 72,609.31

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Solution

The fourth proportional to 133,039.16, 183,592.61 and 72,609.31 is: 100,200.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,039.16 : 183,592.61 = 72,609.31 : x
  2. Step 2: Convert to fraction form
    133,039.16/183,592.61 = 72,609.31/x
  3. Step 3: Cross multiply
    133,039.16x = 183,592.61 × 72,609.31
  4. Step 4: Simplify right side
    133,039.16x = 13,330,532,943.88
  5. Step 5: Solve for x
    x = 13,330,532,943.88/133,039.16
  6. Step 6: Final answer
    x = 100,200.07

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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.