Home / 133,185.08-183,799.35-72,756.72

Finding the Fourth Proportional to 133,185.08, 183,799.35 and 72,756.72

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Solution

The fourth proportional to 133,185.08, 183,799.35 and 72,756.72 is: 100,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,185.08 : 183,799.35 = 72,756.72 : x
  2. Step 2: Convert to fraction form
    133,185.08/183,799.35 = 72,756.72/x
  3. Step 3: Cross multiply
    133,185.08x = 183,799.35 × 72,756.72
  4. Step 4: Simplify right side
    133,185.08x = 13,372,637,844.13
  5. Step 5: Solve for x
    x = 13,372,637,844.13/133,185.08
  6. Step 6: Final answer
    x = 100,406.43

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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.