Home / 190,660.60-286,015.20-72,365.77

Finding the Fourth Proportional to 190,660.60, 286,015.20 and 72,365.77

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Solution

The fourth proportional to 190,660.60, 286,015.20 and 72,365.77 is: 108,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,660.60 : 286,015.20 = 72,365.77 : x
  2. Step 2: Convert to fraction form
    190,660.60/286,015.20 = 72,365.77/x
  3. Step 3: Cross multiply
    190,660.60x = 286,015.20 × 72,365.77
  4. Step 4: Simplify right side
    190,660.60x = 20,697,710,179.70
  5. Step 5: Solve for x
    x = 20,697,710,179.70/190,660.60
  6. Step 6: Final answer
    x = 108,557.88

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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.