Home / 130,797.43-180,497.05-76,360.03

Finding the Fourth Proportional to 130,797.43, 180,497.05 and 76,360.03

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Solution

The fourth proportional to 130,797.43, 180,497.05 and 76,360.03 is: 105,374.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,797.43 : 180,497.05 = 76,360.03 : x
  2. Step 2: Convert to fraction form
    130,797.43/180,497.05 = 76,360.03/x
  3. Step 3: Cross multiply
    130,797.43x = 180,497.05 × 76,360.03
  4. Step 4: Simplify right side
    130,797.43x = 13,782,760,152.91
  5. Step 5: Solve for x
    x = 13,782,760,152.91/130,797.43
  6. Step 6: Final answer
    x = 105,374.85

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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.