Home / 145,788.62-201,255.83-102,803.13

Finding the Fourth Proportional to 145,788.62, 201,255.83 and 102,803.13

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Solution

The fourth proportional to 145,788.62, 201,255.83 and 102,803.13 is: 141,915.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,788.62 : 201,255.83 = 102,803.13 : x
  2. Step 2: Convert to fraction form
    145,788.62/201,255.83 = 102,803.13/x
  3. Step 3: Cross multiply
    145,788.62x = 201,255.83 × 102,803.13
  4. Step 4: Simplify right side
    145,788.62x = 20,689,728,740.73
  5. Step 5: Solve for x
    x = 20,689,728,740.73/145,788.62
  6. Step 6: Final answer
    x = 141,915.94

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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.