Home / 208,164.24-312,343.16-66,031.92

Finding the Fourth Proportional to 208,164.24, 312,343.16 and 66,031.92

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Solution

The fourth proportional to 208,164.24, 312,343.16 and 66,031.92 is: 99,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,164.24 : 312,343.16 = 66,031.92 : x
  2. Step 2: Convert to fraction form
    208,164.24/312,343.16 = 66,031.92/x
  3. Step 3: Cross multiply
    208,164.24x = 312,343.16 × 66,031.92
  4. Step 4: Simplify right side
    208,164.24x = 20,624,618,223.51
  5. Step 5: Solve for x
    x = 20,624,618,223.51/208,164.24
  6. Step 6: Final answer
    x = 99,078.58

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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.