Home / 185,905.30-278,469.15-102,702.10

Finding the Fourth Proportional to 185,905.30, 278,469.15 and 102,702.10

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Solution

The fourth proportional to 185,905.30, 278,469.15 and 102,702.10 is: 153,838.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,905.30 : 278,469.15 = 102,702.10 : x
  2. Step 2: Convert to fraction form
    185,905.30/278,469.15 = 102,702.10/x
  3. Step 3: Cross multiply
    185,905.30x = 278,469.15 × 102,702.10
  4. Step 4: Simplify right side
    185,905.30x = 28,599,366,490.22
  5. Step 5: Solve for x
    x = 28,599,366,490.22/185,905.30
  6. Step 6: Final answer
    x = 153,838.36

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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.