Home / 89,318.04-134,511.93-81,346.44

Finding the Fourth Proportional to 89,318.04, 134,511.93 and 81,346.44

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Solution

The fourth proportional to 89,318.04, 134,511.93 and 81,346.44 is: 122,506.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,318.04 : 134,511.93 = 81,346.44 : x
  2. Step 2: Convert to fraction form
    89,318.04/134,511.93 = 81,346.44/x
  3. Step 3: Cross multiply
    89,318.04x = 134,511.93 × 81,346.44
  4. Step 4: Simplify right side
    89,318.04x = 10,942,066,643.03
  5. Step 5: Solve for x
    x = 10,942,066,643.03/89,318.04
  6. Step 6: Final answer
    x = 122,506.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.