Home / 130,686.78-195,941.46-66,487.14

Finding the Fourth Proportional to 130,686.78, 195,941.46 and 66,487.14

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Solution

The fourth proportional to 130,686.78, 195,941.46 and 66,487.14 is: 99,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,686.78 : 195,941.46 = 66,487.14 : x
  2. Step 2: Convert to fraction form
    130,686.78/195,941.46 = 66,487.14/x
  3. Step 3: Cross multiply
    130,686.78x = 195,941.46 × 66,487.14
  4. Step 4: Simplify right side
    130,686.78x = 13,027,587,282.82
  5. Step 5: Solve for x
    x = 13,027,587,282.82/130,686.78
  6. Step 6: Final answer
    x = 99,685.58

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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.