Home / 190,210.96-285,315.76-57,090.64

Finding the Fourth Proportional to 190,210.96, 285,315.76 and 57,090.64

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Solution

The fourth proportional to 190,210.96, 285,315.76 and 57,090.64 is: 85,635.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,210.96 : 285,315.76 = 57,090.64 : x
  2. Step 2: Convert to fraction form
    190,210.96/285,315.76 = 57,090.64/x
  3. Step 3: Cross multiply
    190,210.96x = 285,315.76 × 57,090.64
  4. Step 4: Simplify right side
    190,210.96x = 16,288,859,340.49
  5. Step 5: Solve for x
    x = 16,288,859,340.49/190,210.96
  6. Step 6: Final answer
    x = 85,635.76

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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.