Home / 130,638.84-195,942.60-40,688.04

Finding the Fourth Proportional to 130,638.84, 195,942.60 and 40,688.04

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Solution

The fourth proportional to 130,638.84, 195,942.60 and 40,688.04 is: 61,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,638.84 : 195,942.60 = 40,688.04 : x
  2. Step 2: Convert to fraction form
    130,638.84/195,942.60 = 40,688.04/x
  3. Step 3: Cross multiply
    130,638.84x = 195,942.60 × 40,688.04
  4. Step 4: Simplify right side
    130,638.84x = 7,972,520,346.50
  5. Step 5: Solve for x
    x = 7,972,520,346.50/130,638.84
  6. Step 6: Final answer
    x = 61,027.18

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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.