Home / 107,120.72-147,835.44-59,389.04

Finding the Fourth Proportional to 107,120.72, 147,835.44 and 59,389.04

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Solution

The fourth proportional to 107,120.72, 147,835.44 and 59,389.04 is: 81,961.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,120.72 : 147,835.44 = 59,389.04 : x
  2. Step 2: Convert to fraction form
    107,120.72/147,835.44 = 59,389.04/x
  3. Step 3: Cross multiply
    107,120.72x = 147,835.44 × 59,389.04
  4. Step 4: Simplify right side
    107,120.72x = 8,779,804,859.58
  5. Step 5: Solve for x
    x = 8,779,804,859.58/107,120.72
  6. Step 6: Final answer
    x = 81,961.78

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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.