Home / 102,015.18-153,018.59-27,135.54

Finding the Fourth Proportional to 102,015.18, 153,018.59 and 27,135.54

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Solution

The fourth proportional to 102,015.18, 153,018.59 and 27,135.54 is: 40,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,015.18 : 153,018.59 = 27,135.54 : x
  2. Step 2: Convert to fraction form
    102,015.18/153,018.59 = 27,135.54/x
  3. Step 3: Cross multiply
    102,015.18x = 153,018.59 × 27,135.54
  4. Step 4: Simplify right side
    102,015.18x = 4,152,241,934.01
  5. Step 5: Solve for x
    x = 4,152,241,934.01/102,015.18
  6. Step 6: Final answer
    x = 40,702.20

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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.