Home / 107,611.12-148,442.64-64,579.60

Finding the Fourth Proportional to 107,611.12, 148,442.64 and 64,579.60

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Solution

The fourth proportional to 107,611.12, 148,442.64 and 64,579.60 is: 89,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,611.12 : 148,442.64 = 64,579.60 : x
  2. Step 2: Convert to fraction form
    107,611.12/148,442.64 = 64,579.60/x
  3. Step 3: Cross multiply
    107,611.12x = 148,442.64 × 64,579.60
  4. Step 4: Simplify right side
    107,611.12x = 9,586,366,314.14
  5. Step 5: Solve for x
    x = 9,586,366,314.14/107,611.12
  6. Step 6: Final answer
    x = 89,083.42

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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.