Home / 89,705.91-134,559.06-84,225.43

Finding the Fourth Proportional to 89,705.91, 134,559.06 and 84,225.43

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Solution

The fourth proportional to 89,705.91, 134,559.06 and 84,225.43 is: 126,338.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,705.91 : 134,559.06 = 84,225.43 : x
  2. Step 2: Convert to fraction form
    89,705.91/134,559.06 = 84,225.43/x
  3. Step 3: Cross multiply
    89,705.91x = 134,559.06 × 84,225.43
  4. Step 4: Simplify right side
    89,705.91x = 11,333,294,688.90
  5. Step 5: Solve for x
    x = 11,333,294,688.90/89,705.91
  6. Step 6: Final answer
    x = 126,338.33

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1.5x scale

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.