Home / 130,821.24-180,528.30-74,229.24

Finding the Fourth Proportional to 130,821.24, 180,528.30 and 74,229.24

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Solution

The fourth proportional to 130,821.24, 180,528.30 and 74,229.24 is: 102,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,821.24 : 180,528.30 = 74,229.24 : x
  2. Step 2: Convert to fraction form
    130,821.24/180,528.30 = 74,229.24/x
  3. Step 3: Cross multiply
    130,821.24x = 180,528.30 × 74,229.24
  4. Step 4: Simplify right side
    130,821.24x = 13,400,478,507.49
  5. Step 5: Solve for x
    x = 13,400,478,507.49/130,821.24
  6. Step 6: Final answer
    x = 102,433.51

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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.