Home / 142,815.84-214,075.17-47,975.64

Finding the Fourth Proportional to 142,815.84, 214,075.17 and 47,975.64

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Solution

The fourth proportional to 142,815.84, 214,075.17 and 47,975.64 is: 71,913.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,815.84 : 214,075.17 = 47,975.64 : x
  2. Step 2: Convert to fraction form
    142,815.84/214,075.17 = 47,975.64/x
  3. Step 3: Cross multiply
    142,815.84x = 214,075.17 × 47,975.64
  4. Step 4: Simplify right side
    142,815.84x = 10,270,393,288.86
  5. Step 5: Solve for x
    x = 10,270,393,288.86/142,815.84
  6. Step 6: Final answer
    x = 71,913.54

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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.