Home / 190,956.20-286,361.40-57,792.20

Finding the Fourth Proportional to 190,956.20, 286,361.40 and 57,792.20

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Solution

The fourth proportional to 190,956.20, 286,361.40 and 57,792.20 is: 86,666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,956.20 : 286,361.40 = 57,792.20 : x
  2. Step 2: Convert to fraction form
    190,956.20/286,361.40 = 57,792.20/x
  3. Step 3: Cross multiply
    190,956.20x = 286,361.40 × 57,792.20
  4. Step 4: Simplify right side
    190,956.20x = 16,549,455,301.08
  5. Step 5: Solve for x
    x = 16,549,455,301.08/190,956.20
  6. Step 6: Final answer
    x = 86,666.24

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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.