Home / 111,705.48-154,149.66-61,404.12

Finding the Fourth Proportional to 111,705.48, 154,149.66 and 61,404.12

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Solution

The fourth proportional to 111,705.48, 154,149.66 and 61,404.12 is: 84,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,705.48 : 154,149.66 = 61,404.12 : x
  2. Step 2: Convert to fraction form
    111,705.48/154,149.66 = 61,404.12/x
  3. Step 3: Cross multiply
    111,705.48x = 154,149.66 × 61,404.12
  4. Step 4: Simplify right side
    111,705.48x = 9,465,424,220.60
  5. Step 5: Solve for x
    x = 9,465,424,220.60/111,705.48
  6. Step 6: Final answer
    x = 84,735.54

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1.5x scale

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.