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Finding the Fourth Proportional to 103,521.70, 155,282.55 and 103,521.70

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Solution

The fourth proportional to 103,521.70, 155,282.55 and 103,521.70 is: 155,282.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,521.70 : 155,282.55 = 103,521.70 : x
  2. Step 2: Convert to fraction form
    103,521.70/155,282.55 = 103,521.70/x
  3. Step 3: Cross multiply
    103,521.70x = 155,282.55 × 103,521.70
  4. Step 4: Simplify right side
    103,521.70x = 16,075,113,556.34
  5. Step 5: Solve for x
    x = 16,075,113,556.34/103,521.70
  6. Step 6: Final answer
    x = 155,282.55

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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.