Home / 120,460.16-180,493.11-72,931.19

Finding the Fourth Proportional to 120,460.16, 180,493.11 and 72,931.19

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Solution

The fourth proportional to 120,460.16, 180,493.11 and 72,931.19 is: 109,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,460.16 : 180,493.11 = 72,931.19 : x
  2. Step 2: Convert to fraction form
    120,460.16/180,493.11 = 72,931.19/x
  3. Step 3: Cross multiply
    120,460.16x = 180,493.11 × 72,931.19
  4. Step 4: Simplify right side
    120,460.16x = 13,163,576,396.64
  5. Step 5: Solve for x
    x = 13,163,576,396.64/120,460.16
  6. Step 6: Final answer
    x = 109,277.43

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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.