Home / 190,835.46-286,253.19-85,626.18

Finding the Fourth Proportional to 190,835.46, 286,253.19 and 85,626.18

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Solution

The fourth proportional to 190,835.46, 286,253.19 and 85,626.18 is: 128,439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,835.46 : 286,253.19 = 85,626.18 : x
  2. Step 2: Convert to fraction form
    190,835.46/286,253.19 = 85,626.18/x
  3. Step 3: Cross multiply
    190,835.46x = 286,253.19 × 85,626.18
  4. Step 4: Simplify right side
    190,835.46x = 24,510,767,172.51
  5. Step 5: Solve for x
    x = 24,510,767,172.51/190,835.46
  6. Step 6: Final answer
    x = 128,439.27

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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.