Home / 134,168.03-201,288.35-45,421.55

Finding the Fourth Proportional to 134,168.03, 201,288.35 and 45,421.55

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Solution

The fourth proportional to 134,168.03, 201,288.35 and 45,421.55 is: 68,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,168.03 : 201,288.35 = 45,421.55 : x
  2. Step 2: Convert to fraction form
    134,168.03/201,288.35 = 45,421.55/x
  3. Step 3: Cross multiply
    134,168.03x = 201,288.35 × 45,421.55
  4. Step 4: Simplify right side
    134,168.03x = 9,142,828,853.94
  5. Step 5: Solve for x
    x = 9,142,828,853.94/134,168.03
  6. Step 6: Final answer
    x = 68,144.62

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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.