Home / 133,100.54-183,679.07-72,671.70

Finding the Fourth Proportional to 133,100.54, 183,679.07 and 72,671.70

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Solution

The fourth proportional to 133,100.54, 183,679.07 and 72,671.70 is: 100,287.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,100.54 : 183,679.07 = 72,671.70 : x
  2. Step 2: Convert to fraction form
    133,100.54/183,679.07 = 72,671.70/x
  3. Step 3: Cross multiply
    133,100.54x = 183,679.07 × 72,671.70
  4. Step 4: Simplify right side
    133,100.54x = 13,348,270,271.32
  5. Step 5: Solve for x
    x = 13,348,270,271.32/133,100.54
  6. Step 6: Final answer
    x = 100,287.12

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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.