Home / 99,516.58-137,333-54,194.64

Finding the Fourth Proportional to 99,516.58, 137,333 and 54,194.64

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Solution

The fourth proportional to 99,516.58, 137,333 and 54,194.64 is: 74,788.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,516.58 : 137,333 = 54,194.64 : x
  2. Step 2: Convert to fraction form
    99,516.58/137,333 = 54,194.64/x
  3. Step 3: Cross multiply
    99,516.58x = 137,333 × 54,194.64
  4. Step 4: Simplify right side
    99,516.58x = 7,442,712,495.12
  5. Step 5: Solve for x
    x = 7,442,712,495.12/99,516.58
  6. Step 6: Final answer
    x = 74,788.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.