Home / 130,276.09-179,638.24-84,869.87

Finding the Fourth Proportional to 130,276.09, 179,638.24 and 84,869.87

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Solution

The fourth proportional to 130,276.09, 179,638.24 and 84,869.87 is: 117,027.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,276.09 : 179,638.24 = 84,869.87 : x
  2. Step 2: Convert to fraction form
    130,276.09/179,638.24 = 84,869.87/x
  3. Step 3: Cross multiply
    130,276.09x = 179,638.24 × 84,869.87
  4. Step 4: Simplify right side
    130,276.09x = 15,245,873,083.92
  5. Step 5: Solve for x
    x = 15,245,873,083.92/130,276.09
  6. Step 6: Final answer
    x = 117,027.41

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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.