Home / 122,113.78-183,172.56-43,172.80

Finding the Fourth Proportional to 122,113.78, 183,172.56 and 43,172.80

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Solution

The fourth proportional to 122,113.78, 183,172.56 and 43,172.80 is: 64,759.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,113.78 : 183,172.56 = 43,172.80 : x
  2. Step 2: Convert to fraction form
    122,113.78/183,172.56 = 43,172.80/x
  3. Step 3: Cross multiply
    122,113.78x = 183,172.56 × 43,172.80
  4. Step 4: Simplify right side
    122,113.78x = 7,908,071,166.64
  5. Step 5: Solve for x
    x = 7,908,071,166.64/122,113.78
  6. Step 6: Final answer
    x = 64,759.86

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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.