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Finding the Fourth Proportional to 130,609.96, 180,240.90 and 70,993.96

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Solution

The fourth proportional to 130,609.96, 180,240.90 and 70,993.96 is: 97,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,609.96 : 180,240.90 = 70,993.96 : x
  2. Step 2: Convert to fraction form
    130,609.96/180,240.90 = 70,993.96/x
  3. Step 3: Cross multiply
    130,609.96x = 180,240.90 × 70,993.96
  4. Step 4: Simplify right side
    130,609.96x = 12,796,015,244.96
  5. Step 5: Solve for x
    x = 12,796,015,244.96/130,609.96
  6. Step 6: Final answer
    x = 97,971.21

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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.