Home / 130,638.24-180,287.92-73,295.72

Finding the Fourth Proportional to 130,638.24, 180,287.92 and 73,295.72

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Solution

The fourth proportional to 130,638.24, 180,287.92 and 73,295.72 is: 101,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,638.24 : 180,287.92 = 73,295.72 : x
  2. Step 2: Convert to fraction form
    130,638.24/180,287.92 = 73,295.72/x
  3. Step 3: Cross multiply
    130,638.24x = 180,287.92 × 73,295.72
  4. Step 4: Simplify right side
    130,638.24x = 13,214,332,903.70
  5. Step 5: Solve for x
    x = 13,214,332,903.70/130,638.24
  6. Step 6: Final answer
    x = 101,152.10

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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.