Home / 99,493.21-137,299.34-54,170.67

Finding the Fourth Proportional to 99,493.21, 137,299.34 and 54,170.67

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Solution

The fourth proportional to 99,493.21, 137,299.34 and 54,170.67 is: 74,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,493.21 : 137,299.34 = 54,170.67 : x
  2. Step 2: Convert to fraction form
    99,493.21/137,299.34 = 54,170.67/x
  3. Step 3: Cross multiply
    99,493.21x = 137,299.34 × 54,170.67
  4. Step 4: Simplify right side
    99,493.21x = 7,437,596,967.50
  5. Step 5: Solve for x
    x = 7,437,596,967.50/99,493.21
  6. Step 6: Final answer
    x = 74,754.82

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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.