Home / 190,355.49-285,340.98-119,327.91

Finding the Fourth Proportional to 190,355.49, 285,340.98 and 119,327.91

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Solution

The fourth proportional to 190,355.49, 285,340.98 and 119,327.91 is: 178,871.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,355.49 : 285,340.98 = 119,327.91 : x
  2. Step 2: Convert to fraction form
    190,355.49/285,340.98 = 119,327.91/x
  3. Step 3: Cross multiply
    190,355.49x = 285,340.98 × 119,327.91
  4. Step 4: Simplify right side
    190,355.49x = 34,049,143,763.25
  5. Step 5: Solve for x
    x = 34,049,143,763.25/190,355.49
  6. Step 6: Final answer
    x = 178,871.35

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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.