Home / 261,114.10-391,707.60-111,353.20

Finding the Fourth Proportional to 261,114.10, 391,707.60 and 111,353.20

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Solution

The fourth proportional to 261,114.10, 391,707.60 and 111,353.20 is: 167,045.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,114.10 : 391,707.60 = 111,353.20 : x
  2. Step 2: Convert to fraction form
    261,114.10/391,707.60 = 111,353.20/x
  3. Step 3: Cross multiply
    261,114.10x = 391,707.60 × 111,353.20
  4. Step 4: Simplify right side
    261,114.10x = 43,617,894,724.32
  5. Step 5: Solve for x
    x = 43,617,894,724.32/261,114.10
  6. Step 6: Final answer
    x = 167,045.34

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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.