Home / 190,427.10-285,640.65-48,272.10

Finding the Fourth Proportional to 190,427.10, 285,640.65 and 48,272.10

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Solution

The fourth proportional to 190,427.10, 285,640.65 and 48,272.10 is: 72,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,427.10 : 285,640.65 = 48,272.10 : x
  2. Step 2: Convert to fraction form
    190,427.10/285,640.65 = 48,272.10/x
  3. Step 3: Cross multiply
    190,427.10x = 285,640.65 × 48,272.10
  4. Step 4: Simplify right side
    190,427.10x = 13,788,474,020.87
  5. Step 5: Solve for x
    x = 13,788,474,020.87/190,427.10
  6. Step 6: Final answer
    x = 72,408.15

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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.