Home / 130,865.44-180,589.76-79,963.38

Finding the Fourth Proportional to 130,865.44, 180,589.76 and 79,963.38

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Solution

The fourth proportional to 130,865.44, 180,589.76 and 79,963.38 is: 110,346.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,865.44 : 180,589.76 = 79,963.38 : x
  2. Step 2: Convert to fraction form
    130,865.44/180,589.76 = 79,963.38/x
  3. Step 3: Cross multiply
    130,865.44x = 180,589.76 × 79,963.38
  4. Step 4: Simplify right side
    130,865.44x = 14,440,567,602.99
  5. Step 5: Solve for x
    x = 14,440,567,602.99/130,865.44
  6. Step 6: Final answer
    x = 110,346.69

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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.