Home / 99,932.15-137,889.99-59,090.60

Finding the Fourth Proportional to 99,932.15, 137,889.99 and 59,090.60

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Solution

The fourth proportional to 99,932.15, 137,889.99 and 59,090.60 is: 81,535.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,932.15 : 137,889.99 = 59,090.60 : x
  2. Step 2: Convert to fraction form
    99,932.15/137,889.99 = 59,090.60/x
  3. Step 3: Cross multiply
    99,932.15x = 137,889.99 × 59,090.60
  4. Step 4: Simplify right side
    99,932.15x = 8,148,001,553.64
  5. Step 5: Solve for x
    x = 8,148,001,553.64/99,932.15
  6. Step 6: Final answer
    x = 81,535.34

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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.