Home / 190,740.71-286,154.72-82,688.21

Finding the Fourth Proportional to 190,740.71, 286,154.72 and 82,688.21

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Solution

The fourth proportional to 190,740.71, 286,154.72 and 82,688.21 is: 124,051.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,740.71 : 286,154.72 = 82,688.21 : x
  2. Step 2: Convert to fraction form
    190,740.71/286,154.72 = 82,688.21/x
  3. Step 3: Cross multiply
    190,740.71x = 286,154.72 × 82,688.21
  4. Step 4: Simplify right side
    190,740.71x = 23,661,621,166.41
  5. Step 5: Solve for x
    x = 23,661,621,166.41/190,740.71
  6. Step 6: Final answer
    x = 124,051.24

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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.