Home / 99,730.05-137,610.54-59,443.08

Finding the Fourth Proportional to 99,730.05, 137,610.54 and 59,443.08

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Solution

The fourth proportional to 99,730.05, 137,610.54 and 59,443.08 is: 82,021.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,730.05 : 137,610.54 = 59,443.08 : x
  2. Step 2: Convert to fraction form
    99,730.05/137,610.54 = 59,443.08/x
  3. Step 3: Cross multiply
    99,730.05x = 137,610.54 × 59,443.08
  4. Step 4: Simplify right side
    99,730.05x = 8,179,994,338.06
  5. Step 5: Solve for x
    x = 8,179,994,338.06/99,730.05
  6. Step 6: Final answer
    x = 82,021.36

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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.