Home / 133,194.71-183,808.02-72,768.81

Finding the Fourth Proportional to 133,194.71, 183,808.02 and 72,768.81

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Solution

The fourth proportional to 133,194.71, 183,808.02 and 72,768.81 is: 100,420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,194.71 : 183,808.02 = 72,768.81 : x
  2. Step 2: Convert to fraction form
    133,194.71/183,808.02 = 72,768.81/x
  3. Step 3: Cross multiply
    133,194.71x = 183,808.02 × 72,768.81
  4. Step 4: Simplify right side
    133,194.71x = 13,375,490,883.86
  5. Step 5: Solve for x
    x = 13,375,490,883.86/133,194.71
  6. Step 6: Final answer
    x = 100,420.59

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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.