Home / 103,072.40-154,606.40-28,192.55

Finding the Fourth Proportional to 103,072.40, 154,606.40 and 28,192.55

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Solution

The fourth proportional to 103,072.40, 154,606.40 and 28,192.55 is: 42,288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,072.40 : 154,606.40 = 28,192.55 : x
  2. Step 2: Convert to fraction form
    103,072.40/154,606.40 = 28,192.55/x
  3. Step 3: Cross multiply
    103,072.40x = 154,606.40 × 28,192.55
  4. Step 4: Simplify right side
    103,072.40x = 4,358,747,959.77
  5. Step 5: Solve for x
    x = 4,358,747,959.77/103,072.40
  6. Step 6: Final answer
    x = 42,288.22

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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.