Home / 190,135.02-285,201.75-47,980.62

Finding the Fourth Proportional to 190,135.02, 285,201.75 and 47,980.62

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Solution

The fourth proportional to 190,135.02, 285,201.75 and 47,980.62 is: 71,970.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,135.02 : 285,201.75 = 47,980.62 : x
  2. Step 2: Convert to fraction form
    190,135.02/285,201.75 = 47,980.62/x
  3. Step 3: Cross multiply
    190,135.02x = 285,201.75 × 47,980.62
  4. Step 4: Simplify right side
    190,135.02x = 13,684,156,790.09
  5. Step 5: Solve for x
    x = 13,684,156,790.09/190,135.02
  6. Step 6: Final answer
    x = 71,970.73

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1.5x scale

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.