Home / 98,657.03-136,143.38-62,378

Finding the Fourth Proportional to 98,657.03, 136,143.38 and 62,378

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Solution

The fourth proportional to 98,657.03, 136,143.38 and 62,378 is: 86,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,657.03 : 136,143.38 = 62,378 : x
  2. Step 2: Convert to fraction form
    98,657.03/136,143.38 = 62,378/x
  3. Step 3: Cross multiply
    98,657.03x = 136,143.38 × 62,378
  4. Step 4: Simplify right side
    98,657.03x = 8,492,351,757.64
  5. Step 5: Solve for x
    x = 8,492,351,757.64/98,657.03
  6. Step 6: Final answer
    x = 86,079.54

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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.