Home / 106,521.77-147,003.12-58,778.19

Finding the Fourth Proportional to 106,521.77, 147,003.12 and 58,778.19

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Solution

The fourth proportional to 106,521.77, 147,003.12 and 58,778.19 is: 81,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,521.77 : 147,003.12 = 58,778.19 : x
  2. Step 2: Convert to fraction form
    106,521.77/147,003.12 = 58,778.19/x
  3. Step 3: Cross multiply
    106,521.77x = 147,003.12 × 58,778.19
  4. Step 4: Simplify right side
    106,521.77x = 8,640,577,317.95
  5. Step 5: Solve for x
    x = 8,640,577,317.95/106,521.77
  6. Step 6: Final answer
    x = 81,115.60

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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.