Home / 190,127.30-285,205.80-84,956.90

Finding the Fourth Proportional to 190,127.30, 285,205.80 and 84,956.90

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Solution

The fourth proportional to 190,127.30, 285,205.80 and 84,956.90 is: 127,441.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,127.30 : 285,205.80 = 84,956.90 : x
  2. Step 2: Convert to fraction form
    190,127.30/285,205.80 = 84,956.90/x
  3. Step 3: Cross multiply
    190,127.30x = 285,205.80 × 84,956.90
  4. Step 4: Simplify right side
    190,127.30x = 24,230,200,630.02
  5. Step 5: Solve for x
    x = 24,230,200,630.02/190,127.30
  6. Step 6: Final answer
    x = 127,441.99

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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.