Home / 111,622.75-154,040.60-60,636.08

Finding the Fourth Proportional to 111,622.75, 154,040.60 and 60,636.08

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Solution

The fourth proportional to 111,622.75, 154,040.60 and 60,636.08 is: 83,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,622.75 : 154,040.60 = 60,636.08 : x
  2. Step 2: Convert to fraction form
    111,622.75/154,040.60 = 60,636.08/x
  3. Step 3: Cross multiply
    111,622.75x = 154,040.60 × 60,636.08
  4. Step 4: Simplify right side
    111,622.75x = 9,340,418,681.54
  5. Step 5: Solve for x
    x = 9,340,418,681.54/111,622.75
  6. Step 6: Final answer
    x = 83,678.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.