Home / 130,410.82-179,954.48-103,618.18

Finding the Fourth Proportional to 130,410.82, 179,954.48 and 103,618.18

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Solution

The fourth proportional to 130,410.82, 179,954.48 and 103,618.18 is: 142,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,410.82 : 179,954.48 = 103,618.18 : x
  2. Step 2: Convert to fraction form
    130,410.82/179,954.48 = 103,618.18/x
  3. Step 3: Cross multiply
    130,410.82x = 179,954.48 × 103,618.18
  4. Step 4: Simplify right side
    130,410.82x = 18,646,555,700.45
  5. Step 5: Solve for x
    x = 18,646,555,700.45/130,410.82
  6. Step 6: Final answer
    x = 142,983.19

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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.