Home / 122,461.79-183,521.61-66,180.56

Finding the Fourth Proportional to 122,461.79, 183,521.61 and 66,180.56

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Solution

The fourth proportional to 122,461.79, 183,521.61 and 66,180.56 is: 99,178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,461.79 : 183,521.61 = 66,180.56 : x
  2. Step 2: Convert to fraction form
    122,461.79/183,521.61 = 66,180.56/x
  3. Step 3: Cross multiply
    122,461.79x = 183,521.61 × 66,180.56
  4. Step 4: Simplify right side
    122,461.79x = 12,145,562,004.29
  5. Step 5: Solve for x
    x = 12,145,562,004.29/122,461.79
  6. Step 6: Final answer
    x = 99,178.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.