Home / 190,849.90-286,384.20-72,606.10

Finding the Fourth Proportional to 190,849.90, 286,384.20 and 72,606.10

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Solution

The fourth proportional to 190,849.90, 286,384.20 and 72,606.10 is: 108,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,849.90 : 286,384.20 = 72,606.10 : x
  2. Step 2: Convert to fraction form
    190,849.90/286,384.20 = 72,606.10/x
  3. Step 3: Cross multiply
    190,849.90x = 286,384.20 × 72,606.10
  4. Step 4: Simplify right side
    190,849.90x = 20,793,239,863.62
  5. Step 5: Solve for x
    x = 20,793,239,863.62/190,849.90
  6. Step 6: Final answer
    x = 108,950.75

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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.