Home / 106,739.08-147,279-64,299.94

Finding the Fourth Proportional to 106,739.08, 147,279 and 64,299.94

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Solution

The fourth proportional to 106,739.08, 147,279 and 64,299.94 is: 88,721.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,739.08 : 147,279 = 64,299.94 : x
  2. Step 2: Convert to fraction form
    106,739.08/147,279 = 64,299.94/x
  3. Step 3: Cross multiply
    106,739.08x = 147,279 × 64,299.94
  4. Step 4: Simplify right side
    106,739.08x = 9,470,030,863.26
  5. Step 5: Solve for x
    x = 9,470,030,863.26/106,739.08
  6. Step 6: Final answer
    x = 88,721.31

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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.