Home / 140,631.80-210,947.70-47,140.60

Finding the Fourth Proportional to 140,631.80, 210,947.70 and 47,140.60

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Solution

The fourth proportional to 140,631.80, 210,947.70 and 47,140.60 is: 70,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,631.80 : 210,947.70 = 47,140.60 : x
  2. Step 2: Convert to fraction form
    140,631.80/210,947.70 = 47,140.60/x
  3. Step 3: Cross multiply
    140,631.80x = 210,947.70 × 47,140.60
  4. Step 4: Simplify right side
    140,631.80x = 9,944,201,146.62
  5. Step 5: Solve for x
    x = 9,944,201,146.62/140,631.80
  6. Step 6: Final answer
    x = 70,710.90

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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.