Home / 190,905.10-286,390.05-57,784.30

Finding the Fourth Proportional to 190,905.10, 286,390.05 and 57,784.30

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Solution

The fourth proportional to 190,905.10, 286,390.05 and 57,784.30 is: 86,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,905.10 : 286,390.05 = 57,784.30 : x
  2. Step 2: Convert to fraction form
    190,905.10/286,390.05 = 57,784.30/x
  3. Step 3: Cross multiply
    190,905.10x = 286,390.05 × 57,784.30
  4. Step 4: Simplify right side
    190,905.10x = 16,548,848,566.22
  5. Step 5: Solve for x
    x = 16,548,848,566.22/190,905.10
  6. Step 6: Final answer
    x = 86,686.26

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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.