Home / 130,433.64-195,315.67-90,395.56

Finding the Fourth Proportional to 130,433.64, 195,315.67 and 90,395.56

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Solution

The fourth proportional to 130,433.64, 195,315.67 and 90,395.56 is: 135,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,433.64 : 195,315.67 = 90,395.56 : x
  2. Step 2: Convert to fraction form
    130,433.64/195,315.67 = 90,395.56/x
  3. Step 3: Cross multiply
    130,433.64x = 195,315.67 × 90,395.56
  4. Step 4: Simplify right side
    130,433.64x = 17,655,669,366.43
  5. Step 5: Solve for x
    x = 17,655,669,366.43/130,433.64
  6. Step 6: Final answer
    x = 135,361.32

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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.