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Finding the Fourth Proportional to 99,715.95, 137,328.08 and 97,538.67

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Solution

The fourth proportional to 99,715.95, 137,328.08 and 97,538.67 is: 134,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,715.95 : 137,328.08 = 97,538.67 : x
  2. Step 2: Convert to fraction form
    99,715.95/137,328.08 = 97,538.67/x
  3. Step 3: Cross multiply
    99,715.95x = 137,328.08 × 97,538.67
  4. Step 4: Simplify right side
    99,715.95x = 13,394,797,789.16
  5. Step 5: Solve for x
    x = 13,394,797,789.16/99,715.95
  6. Step 6: Final answer
    x = 134,329.54

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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.