Home / 130,407.82-179,950.35-103,615.18

Finding the Fourth Proportional to 130,407.82, 179,950.35 and 103,615.18

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Solution

The fourth proportional to 130,407.82, 179,950.35 and 103,615.18 is: 142,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,407.82 : 179,950.35 = 103,615.18 : x
  2. Step 2: Convert to fraction form
    130,407.82/179,950.35 = 103,615.18/x
  3. Step 3: Cross multiply
    130,407.82x = 179,950.35 × 103,615.18
  4. Step 4: Simplify right side
    130,407.82x = 18,645,587,906.31
  5. Step 5: Solve for x
    x = 18,645,587,906.31/130,407.82
  6. Step 6: Final answer
    x = 142,979.06

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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.