Home / 99,686.16-137,566.44-54,974.16

Finding the Fourth Proportional to 99,686.16, 137,566.44 and 54,974.16

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Solution

The fourth proportional to 99,686.16, 137,566.44 and 54,974.16 is: 75,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,686.16 : 137,566.44 = 54,974.16 : x
  2. Step 2: Convert to fraction form
    99,686.16/137,566.44 = 54,974.16/x
  3. Step 3: Cross multiply
    99,686.16x = 137,566.44 × 54,974.16
  4. Step 4: Simplify right side
    99,686.16x = 7,562,599,483.19
  5. Step 5: Solve for x
    x = 7,562,599,483.19/99,686.16
  6. Step 6: Final answer
    x = 75,864.09

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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.