Home / 145,114.24-200,271.36-84,680

Finding the Fourth Proportional to 145,114.24, 200,271.36 and 84,680

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Solution

The fourth proportional to 145,114.24, 200,271.36 and 84,680 is: 116,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,114.24 : 200,271.36 = 84,680 : x
  2. Step 2: Convert to fraction form
    145,114.24/200,271.36 = 84,680/x
  3. Step 3: Cross multiply
    145,114.24x = 200,271.36 × 84,680
  4. Step 4: Simplify right side
    145,114.24x = 16,958,978,764.80
  5. Step 5: Solve for x
    x = 16,958,978,764.80/145,114.24
  6. Step 6: Final answer
    x = 116,866.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.