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Finding the Fourth Proportional to 130,924.96, 180,675.60 and 71,308.96

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Solution

The fourth proportional to 130,924.96, 180,675.60 and 71,308.96 is: 98,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,924.96 : 180,675.60 = 71,308.96 : x
  2. Step 2: Convert to fraction form
    130,924.96/180,675.60 = 71,308.96/x
  3. Step 3: Cross multiply
    130,924.96x = 180,675.60 × 71,308.96
  4. Step 4: Simplify right side
    130,924.96x = 12,883,789,133.38
  5. Step 5: Solve for x
    x = 12,883,789,133.38/130,924.96
  6. Step 6: Final answer
    x = 98,405.90

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1.5x scale

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.