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Finding the Fourth Proportional to 140,653.40, 210,957.35 and 51,948.68

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Solution

The fourth proportional to 140,653.40, 210,957.35 and 51,948.68 is: 77,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,653.40 : 210,957.35 = 51,948.68 : x
  2. Step 2: Convert to fraction form
    140,653.40/210,957.35 = 51,948.68/x
  3. Step 3: Cross multiply
    140,653.40x = 210,957.35 × 51,948.68
  4. Step 4: Simplify right side
    140,653.40x = 10,958,954,554.27
  5. Step 5: Solve for x
    x = 10,958,954,554.27/140,653.40
  6. Step 6: Final answer
    x = 77,914.61

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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.