Home / 122,002.80-183,295.80-109,172.40

Finding the Fourth Proportional to 122,002.80, 183,295.80 and 109,172.40

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Solution

The fourth proportional to 122,002.80, 183,295.80 and 109,172.40 is: 164,019.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,002.80 : 183,295.80 = 109,172.40 : x
  2. Step 2: Convert to fraction form
    122,002.80/183,295.80 = 109,172.40/x
  3. Step 3: Cross multiply
    122,002.80x = 183,295.80 × 109,172.40
  4. Step 4: Simplify right side
    122,002.80x = 20,010,842,395.92
  5. Step 5: Solve for x
    x = 20,010,842,395.92/122,002.80
  6. Step 6: Final answer
    x = 164,019.53

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1.5x scale

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.