Home / 130,790.25-196,271.55-71,667.45

Finding the Fourth Proportional to 130,790.25, 196,271.55 and 71,667.45

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Solution

The fourth proportional to 130,790.25, 196,271.55 and 71,667.45 is: 107,548.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,790.25 : 196,271.55 = 71,667.45 : x
  2. Step 2: Convert to fraction form
    130,790.25/196,271.55 = 71,667.45/x
  3. Step 3: Cross multiply
    130,790.25x = 196,271.55 × 71,667.45
  4. Step 4: Simplify right side
    130,790.25x = 14,066,281,496.05
  5. Step 5: Solve for x
    x = 14,066,281,496.05/130,790.25
  6. Step 6: Final answer
    x = 107,548.40

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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.