Home / 190,630.40-285,947.64-57,511.80

Finding the Fourth Proportional to 190,630.40, 285,947.64 and 57,511.80

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Solution

The fourth proportional to 190,630.40, 285,947.64 and 57,511.80 is: 86,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,630.40 : 285,947.64 = 57,511.80 : x
  2. Step 2: Convert to fraction form
    190,630.40/285,947.64 = 57,511.80/x
  3. Step 3: Cross multiply
    190,630.40x = 285,947.64 × 57,511.80
  4. Step 4: Simplify right side
    190,630.40x = 16,445,363,482.15
  5. Step 5: Solve for x
    x = 16,445,363,482.15/190,630.40
  6. Step 6: Final answer
    x = 86,268.32

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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.