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Finding the Fourth Proportional to 144,019.40, 216,029.10 and 137,458.40

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Solution

The fourth proportional to 144,019.40, 216,029.10 and 137,458.40 is: 206,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,019.40 : 216,029.10 = 137,458.40 : x
  2. Step 2: Convert to fraction form
    144,019.40/216,029.10 = 137,458.40/x
  3. Step 3: Cross multiply
    144,019.40x = 216,029.10 × 137,458.40
  4. Step 4: Simplify right side
    144,019.40x = 29,695,014,439.44
  5. Step 5: Solve for x
    x = 29,695,014,439.44/144,019.40
  6. Step 6: Final answer
    x = 206,187.60

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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.