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Finding the Fourth Proportional to 120,000.40, 179,741.40 and 104,448.40

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Solution

The fourth proportional to 120,000.40, 179,741.40 and 104,448.40 is: 156,446.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,000.40 : 179,741.40 = 104,448.40 : x
  2. Step 2: Convert to fraction form
    120,000.40/179,741.40 = 104,448.40/x
  3. Step 3: Cross multiply
    120,000.40x = 179,741.40 × 104,448.40
  4. Step 4: Simplify right side
    120,000.40x = 18,773,701,643.76
  5. Step 5: Solve for x
    x = 18,773,701,643.76/120,000.40
  6. Step 6: Final answer
    x = 156,446.99

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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.