Home / 134,541.20-201,667.80-45,712.40

Finding the Fourth Proportional to 134,541.20, 201,667.80 and 45,712.40

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Solution

The fourth proportional to 134,541.20, 201,667.80 and 45,712.40 is: 68,519.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,541.20 : 201,667.80 = 45,712.40 : x
  2. Step 2: Convert to fraction form
    134,541.20/201,667.80 = 45,712.40/x
  3. Step 3: Cross multiply
    134,541.20x = 201,667.80 × 45,712.40
  4. Step 4: Simplify right side
    134,541.20x = 9,218,719,140.72
  5. Step 5: Solve for x
    x = 9,218,719,140.72/134,541.20
  6. Step 6: Final answer
    x = 68,519.67

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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.