Home / 130,617.88-180,272.37-79,660.18

Finding the Fourth Proportional to 130,617.88, 180,272.37 and 79,660.18

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Solution

The fourth proportional to 130,617.88, 180,272.37 and 79,660.18 is: 109,943.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,617.88 : 180,272.37 = 79,660.18 : x
  2. Step 2: Convert to fraction form
    130,617.88/180,272.37 = 79,660.18/x
  3. Step 3: Cross multiply
    130,617.88x = 180,272.37 × 79,660.18
  4. Step 4: Simplify right side
    130,617.88x = 14,360,529,443.23
  5. Step 5: Solve for x
    x = 14,360,529,443.23/130,617.88
  6. Step 6: Final answer
    x = 109,943.06

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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.