Home / 103,415.08-155,156.06-50,787.66

Finding the Fourth Proportional to 103,415.08, 155,156.06 and 50,787.66

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Solution

The fourth proportional to 103,415.08, 155,156.06 and 50,787.66 is: 76,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,415.08 : 155,156.06 = 50,787.66 : x
  2. Step 2: Convert to fraction form
    103,415.08/155,156.06 = 50,787.66/x
  3. Step 3: Cross multiply
    103,415.08x = 155,156.06 × 50,787.66
  4. Step 4: Simplify right side
    103,415.08x = 7,880,013,222.22
  5. Step 5: Solve for x
    x = 7,880,013,222.22/103,415.08
  6. Step 6: Final answer
    x = 76,197.91

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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.