Home / 122,007.80-183,011.70-102,762.20

Finding the Fourth Proportional to 122,007.80, 183,011.70 and 102,762.20

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Solution

The fourth proportional to 122,007.80, 183,011.70 and 102,762.20 is: 154,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,007.80 : 183,011.70 = 102,762.20 : x
  2. Step 2: Convert to fraction form
    122,007.80/183,011.70 = 102,762.20/x
  3. Step 3: Cross multiply
    122,007.80x = 183,011.70 × 102,762.20
  4. Step 4: Simplify right side
    122,007.80x = 18,806,684,917.74
  5. Step 5: Solve for x
    x = 18,806,684,917.74/122,007.80
  6. Step 6: Final answer
    x = 154,143.30

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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.