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Finding the Fourth Proportional to 144,614.40, 216,921.60 and 122,525.70

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Solution

The fourth proportional to 144,614.40, 216,921.60 and 122,525.70 is: 183,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,614.40 : 216,921.60 = 122,525.70 : x
  2. Step 2: Convert to fraction form
    144,614.40/216,921.60 = 122,525.70/x
  3. Step 3: Cross multiply
    144,614.40x = 216,921.60 × 122,525.70
  4. Step 4: Simplify right side
    144,614.40x = 26,578,470,885.12
  5. Step 5: Solve for x
    x = 26,578,470,885.12/144,614.40
  6. Step 6: Final answer
    x = 183,788.55

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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.