Home / 140,518.80-193,920.59-76,856.60

Finding the Fourth Proportional to 140,518.80, 193,920.59 and 76,856.60

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Solution

The fourth proportional to 140,518.80, 193,920.59 and 76,856.60 is: 106,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,518.80 : 193,920.59 = 76,856.60 : x
  2. Step 2: Convert to fraction form
    140,518.80/193,920.59 = 76,856.60/x
  3. Step 3: Cross multiply
    140,518.80x = 193,920.59 × 76,856.60
  4. Step 4: Simplify right side
    140,518.80x = 14,904,075,863.51
  5. Step 5: Solve for x
    x = 14,904,075,863.51/140,518.80
  6. Step 6: Final answer
    x = 106,064.64

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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.