Home / 190,971.36-286,415.04-57,820.32

Finding the Fourth Proportional to 190,971.36, 286,415.04 and 57,820.32

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Solution

The fourth proportional to 190,971.36, 286,415.04 and 57,820.32 is: 86,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,971.36 : 286,415.04 = 57,820.32 : x
  2. Step 2: Convert to fraction form
    190,971.36/286,415.04 = 57,820.32/x
  3. Step 3: Cross multiply
    190,971.36x = 286,415.04 × 57,820.32
  4. Step 4: Simplify right side
    190,971.36x = 16,560,609,265.61
  5. Step 5: Solve for x
    x = 16,560,609,265.61/190,971.36
  6. Step 6: Final answer
    x = 86,717.76

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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.