Home / 190,720.80-286,081.20-57,621.60

Finding the Fourth Proportional to 190,720.80, 286,081.20 and 57,621.60

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Solution

The fourth proportional to 190,720.80, 286,081.20 and 57,621.60 is: 86,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,720.80 : 286,081.20 = 57,621.60 : x
  2. Step 2: Convert to fraction form
    190,720.80/286,081.20 = 57,621.60/x
  3. Step 3: Cross multiply
    190,720.80x = 286,081.20 × 57,621.60
  4. Step 4: Simplify right side
    190,720.80x = 16,484,456,473.92
  5. Step 5: Solve for x
    x = 16,484,456,473.92/190,720.80
  6. Step 6: Final answer
    x = 86,432.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.