Home / 130,309.31-179,825.64-73,720.69

Finding the Fourth Proportional to 130,309.31, 179,825.64 and 73,720.69

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Solution

The fourth proportional to 130,309.31, 179,825.64 and 73,720.69 is: 101,733.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,309.31 : 179,825.64 = 73,720.69 : x
  2. Step 2: Convert to fraction form
    130,309.31/179,825.64 = 73,720.69/x
  3. Step 3: Cross multiply
    130,309.31x = 179,825.64 × 73,720.69
  4. Step 4: Simplify right side
    130,309.31x = 13,256,869,534.47
  5. Step 5: Solve for x
    x = 13,256,869,534.47/130,309.31
  6. Step 6: Final answer
    x = 101,733.86

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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.