Home / 103,084.98-154,532.32-71,509.94

Finding the Fourth Proportional to 103,084.98, 154,532.32 and 71,509.94

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Solution

The fourth proportional to 103,084.98, 154,532.32 and 71,509.94 is: 107,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,084.98 : 154,532.32 = 71,509.94 : x
  2. Step 2: Convert to fraction form
    103,084.98/154,532.32 = 71,509.94/x
  3. Step 3: Cross multiply
    103,084.98x = 154,532.32 × 71,509.94
  4. Step 4: Simplify right side
    103,084.98x = 11,050,596,931.26
  5. Step 5: Solve for x
    x = 11,050,596,931.26/103,084.98
  6. Step 6: Final answer
    x = 107,198.90

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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.