Home / 99,840.36-137,719.26-59,527.20

Finding the Fourth Proportional to 99,840.36, 137,719.26 and 59,527.20

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Solution

The fourth proportional to 99,840.36, 137,719.26 and 59,527.20 is: 82,111.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,840.36 : 137,719.26 = 59,527.20 : x
  2. Step 2: Convert to fraction form
    99,840.36/137,719.26 = 59,527.20/x
  3. Step 3: Cross multiply
    99,840.36x = 137,719.26 × 59,527.20
  4. Step 4: Simplify right side
    99,840.36x = 8,198,041,933.87
  5. Step 5: Solve for x
    x = 8,198,041,933.87/99,840.36
  6. Step 6: Final answer
    x = 82,111.50

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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.