Home / 133,231.08-183,853.39-72,803.80

Finding the Fourth Proportional to 133,231.08, 183,853.39 and 72,803.80

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Solution

The fourth proportional to 133,231.08, 183,853.39 and 72,803.80 is: 100,466.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,231.08 : 183,853.39 = 72,803.80 : x
  2. Step 2: Convert to fraction form
    133,231.08/183,853.39 = 72,803.80/x
  3. Step 3: Cross multiply
    133,231.08x = 183,853.39 × 72,803.80
  4. Step 4: Simplify right side
    133,231.08x = 13,385,225,434.88
  5. Step 5: Solve for x
    x = 13,385,225,434.88/133,231.08
  6. Step 6: Final answer
    x = 100,466.24

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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.