Home / 99,608.43-137,455.62-54,285.45

Finding the Fourth Proportional to 99,608.43, 137,455.62 and 54,285.45

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Solution

The fourth proportional to 99,608.43, 137,455.62 and 54,285.45 is: 74,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,608.43 : 137,455.62 = 54,285.45 : x
  2. Step 2: Convert to fraction form
    99,608.43/137,455.62 = 54,285.45/x
  3. Step 3: Cross multiply
    99,608.43x = 137,455.62 × 54,285.45
  4. Step 4: Simplify right side
    99,608.43x = 7,461,840,186.73
  5. Step 5: Solve for x
    x = 7,461,840,186.73/99,608.43
  6. Step 6: Final answer
    x = 74,911.73

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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.