Home / 190,716.48-286,005.87-57,555.72

Finding the Fourth Proportional to 190,716.48, 286,005.87 and 57,555.72

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Solution

The fourth proportional to 190,716.48, 286,005.87 and 57,555.72 is: 86,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,716.48 : 286,005.87 = 57,555.72 : x
  2. Step 2: Convert to fraction form
    190,716.48/286,005.87 = 57,555.72/x
  3. Step 3: Cross multiply
    190,716.48x = 286,005.87 × 57,555.72
  4. Step 4: Simplify right side
    190,716.48x = 16,461,273,772.08
  5. Step 5: Solve for x
    x = 16,461,273,772.08/190,716.48
  6. Step 6: Final answer
    x = 86,312.80

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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.