Home / 89,721.68-134,582.72-84,241.22

Finding the Fourth Proportional to 89,721.68, 134,582.72 and 84,241.22

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Solution

The fourth proportional to 89,721.68, 134,582.72 and 84,241.22 is: 126,362.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,721.68 : 134,582.72 = 84,241.22 : x
  2. Step 2: Convert to fraction form
    89,721.68/134,582.72 = 84,241.22/x
  3. Step 3: Cross multiply
    89,721.68x = 134,582.72 × 84,241.22
  4. Step 4: Simplify right side
    89,721.68x = 11,337,411,429.60
  5. Step 5: Solve for x
    x = 11,337,411,429.60/89,721.68
  6. Step 6: Final answer
    x = 126,362.01

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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.