Home / 133,054.18-183,610.20-79,311.49

Finding the Fourth Proportional to 133,054.18, 183,610.20 and 79,311.49

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Solution

The fourth proportional to 133,054.18, 183,610.20 and 79,311.49 is: 109,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,054.18 : 183,610.20 = 79,311.49 : x
  2. Step 2: Convert to fraction form
    133,054.18/183,610.20 = 79,311.49/x
  3. Step 3: Cross multiply
    133,054.18x = 183,610.20 × 79,311.49
  4. Step 4: Simplify right side
    133,054.18x = 14,562,398,541.20
  5. Step 5: Solve for x
    x = 14,562,398,541.20/133,054.18
  6. Step 6: Final answer
    x = 109,447.13

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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.