Home / 111,975.74-167,962.54-45,400.04

Finding the Fourth Proportional to 111,975.74, 167,962.54 and 45,400.04

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Solution

The fourth proportional to 111,975.74, 167,962.54 and 45,400.04 is: 68,099.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,975.74 : 167,962.54 = 45,400.04 : x
  2. Step 2: Convert to fraction form
    111,975.74/167,962.54 = 45,400.04/x
  3. Step 3: Cross multiply
    111,975.74x = 167,962.54 × 45,400.04
  4. Step 4: Simplify right side
    111,975.74x = 7,625,506,034.50
  5. Step 5: Solve for x
    x = 7,625,506,034.50/111,975.74
  6. Step 6: Final answer
    x = 68,099.63

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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.