Home / 208,044.24-286,968.60-136,428.72

Finding the Fourth Proportional to 208,044.24, 286,968.60 and 136,428.72

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Solution

The fourth proportional to 208,044.24, 286,968.60 and 136,428.72 is: 188,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,044.24 : 286,968.60 = 136,428.72 : x
  2. Step 2: Convert to fraction form
    208,044.24/286,968.60 = 136,428.72/x
  3. Step 3: Cross multiply
    208,044.24x = 286,968.60 × 136,428.72
  4. Step 4: Simplify right side
    208,044.24x = 39,150,758,778.19
  5. Step 5: Solve for x
    x = 39,150,758,778.19/208,044.24
  6. Step 6: Final answer
    x = 188,184.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.