Home / 190,939.80-286,215.30-112,013.40

Finding the Fourth Proportional to 190,939.80, 286,215.30 and 112,013.40

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Solution

The fourth proportional to 190,939.80, 286,215.30 and 112,013.40 is: 167,906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,939.80 : 286,215.30 = 112,013.40 : x
  2. Step 2: Convert to fraction form
    190,939.80/286,215.30 = 112,013.40/x
  3. Step 3: Cross multiply
    190,939.80x = 286,215.30 × 112,013.40
  4. Step 4: Simplify right side
    190,939.80x = 32,059,948,885.02
  5. Step 5: Solve for x
    x = 32,059,948,885.02/190,939.80
  6. Step 6: Final answer
    x = 167,906.06

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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.