Home / 140,883.16-211,430.76-109,215.76

Finding the Fourth Proportional to 140,883.16, 211,430.76 and 109,215.76

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Solution

The fourth proportional to 140,883.16, 211,430.76 and 109,215.76 is: 163,905.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,883.16 : 211,430.76 = 109,215.76 : x
  2. Step 2: Convert to fraction form
    140,883.16/211,430.76 = 109,215.76/x
  3. Step 3: Cross multiply
    140,883.16x = 211,430.76 × 109,215.76
  4. Step 4: Simplify right side
    140,883.16x = 23,091,571,140.78
  5. Step 5: Solve for x
    x = 23,091,571,140.78/140,883.16
  6. Step 6: Final answer
    x = 163,905.83

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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.