Home / 133,172.75-183,783.80-76,584.13

Finding the Fourth Proportional to 133,172.75, 183,783.80 and 76,584.13

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Solution

The fourth proportional to 133,172.75, 183,783.80 and 76,584.13 is: 105,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,172.75 : 183,783.80 = 76,584.13 : x
  2. Step 2: Convert to fraction form
    133,172.75/183,783.80 = 76,584.13/x
  3. Step 3: Cross multiply
    133,172.75x = 183,783.80 × 76,584.13
  4. Step 4: Simplify right side
    133,172.75x = 14,074,922,163.09
  5. Step 5: Solve for x
    x = 14,074,922,163.09/133,172.75
  6. Step 6: Final answer
    x = 105,689.20

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1.5x scale

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.