Home / 99,548.09-137,401.18-61,340.39

Finding the Fourth Proportional to 99,548.09, 137,401.18 and 61,340.39

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Solution

The fourth proportional to 99,548.09, 137,401.18 and 61,340.39 is: 84,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,548.09 : 137,401.18 = 61,340.39 : x
  2. Step 2: Convert to fraction form
    99,548.09/137,401.18 = 61,340.39/x
  3. Step 3: Cross multiply
    99,548.09x = 137,401.18 × 61,340.39
  4. Step 4: Simplify right side
    99,548.09x = 8,428,241,642.56
  5. Step 5: Solve for x
    x = 8,428,241,642.56/99,548.09
  6. Step 6: Final answer
    x = 84,665.03

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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.