Home / 130,412.10-195,618.15-121,664.10

Finding the Fourth Proportional to 130,412.10, 195,618.15 and 121,664.10

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Solution

The fourth proportional to 130,412.10, 195,618.15 and 121,664.10 is: 182,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,412.10 : 195,618.15 = 121,664.10 : x
  2. Step 2: Convert to fraction form
    130,412.10/195,618.15 = 121,664.10/x
  3. Step 3: Cross multiply
    130,412.10x = 195,618.15 × 121,664.10
  4. Step 4: Simplify right side
    130,412.10x = 23,799,706,163.42
  5. Step 5: Solve for x
    x = 23,799,706,163.42/130,412.10
  6. Step 6: Final answer
    x = 182,496.15

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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.