Home / 133,075.40-183,662.52-76,485.56

Finding the Fourth Proportional to 133,075.40, 183,662.52 and 76,485.56

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Solution

The fourth proportional to 133,075.40, 183,662.52 and 76,485.56 is: 105,560.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,075.40 : 183,662.52 = 76,485.56 : x
  2. Step 2: Convert to fraction form
    133,075.40/183,662.52 = 76,485.56/x
  3. Step 3: Cross multiply
    133,075.40x = 183,662.52 × 76,485.56
  4. Step 4: Simplify right side
    133,075.40x = 14,047,530,693.21
  5. Step 5: Solve for x
    x = 14,047,530,693.21/133,075.40
  6. Step 6: Final answer
    x = 105,560.69

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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.