Home / 144,628.20-216,942.30-129,902.40

Finding the Fourth Proportional to 144,628.20, 216,942.30 and 129,902.40

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Solution

The fourth proportional to 144,628.20, 216,942.30 and 129,902.40 is: 194,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,628.20 : 216,942.30 = 129,902.40 : x
  2. Step 2: Convert to fraction form
    144,628.20/216,942.30 = 129,902.40/x
  3. Step 3: Cross multiply
    144,628.20x = 216,942.30 × 129,902.40
  4. Step 4: Simplify right side
    144,628.20x = 28,181,325,431.52
  5. Step 5: Solve for x
    x = 28,181,325,431.52/144,628.20
  6. Step 6: Final answer
    x = 194,853.60

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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.