Home / 89,706.02-134,415.32-68,620.50

Finding the Fourth Proportional to 89,706.02, 134,415.32 and 68,620.50

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Solution

The fourth proportional to 89,706.02, 134,415.32 and 68,620.50 is: 102,820.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,706.02 : 134,415.32 = 68,620.50 : x
  2. Step 2: Convert to fraction form
    89,706.02/134,415.32 = 68,620.50/x
  3. Step 3: Cross multiply
    89,706.02x = 134,415.32 × 68,620.50
  4. Step 4: Simplify right side
    89,706.02x = 9,223,646,122.96
  5. Step 5: Solve for x
    x = 9,223,646,122.96/89,706.02
  6. Step 6: Final answer
    x = 102,820.82

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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.