Home / 102,897.32-154,351.98-39,717.78

Finding the Fourth Proportional to 102,897.32, 154,351.98 and 39,717.78

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Solution

The fourth proportional to 102,897.32, 154,351.98 and 39,717.78 is: 59,578.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,897.32 : 154,351.98 = 39,717.78 : x
  2. Step 2: Convert to fraction form
    102,897.32/154,351.98 = 39,717.78/x
  3. Step 3: Cross multiply
    102,897.32x = 154,351.98 × 39,717.78
  4. Step 4: Simplify right side
    102,897.32x = 6,130,517,984.20
  5. Step 5: Solve for x
    x = 6,130,517,984.20/102,897.32
  6. Step 6: Final answer
    x = 59,578.99

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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.