Home / 133,166.98-183,775.89-76,578.36

Finding the Fourth Proportional to 133,166.98, 183,775.89 and 76,578.36

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Solution

The fourth proportional to 133,166.98, 183,775.89 and 76,578.36 is: 105,681.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,166.98 : 183,775.89 = 76,578.36 : x
  2. Step 2: Convert to fraction form
    133,166.98/183,775.89 = 76,578.36/x
  3. Step 3: Cross multiply
    133,166.98x = 183,775.89 × 76,578.36
  4. Step 4: Simplify right side
    133,166.98x = 14,073,256,263.74
  5. Step 5: Solve for x
    x = 14,073,256,263.74/133,166.98
  6. Step 6: Final answer
    x = 105,681.28

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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.