Home / 205,134.40-307,701.60-111,822.40

Finding the Fourth Proportional to 205,134.40, 307,701.60 and 111,822.40

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Solution

The fourth proportional to 205,134.40, 307,701.60 and 111,822.40 is: 167,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,134.40 : 307,701.60 = 111,822.40 : x
  2. Step 2: Convert to fraction form
    205,134.40/307,701.60 = 111,822.40/x
  3. Step 3: Cross multiply
    205,134.40x = 307,701.60 × 111,822.40
  4. Step 4: Simplify right side
    205,134.40x = 34,407,931,395.84
  5. Step 5: Solve for x
    x = 34,407,931,395.84/205,134.40
  6. Step 6: Final answer
    x = 167,733.60

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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.