Home / 115,418.22-159,095.19-85,106.46

Finding the Fourth Proportional to 115,418.22, 159,095.19 and 85,106.46

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Solution

The fourth proportional to 115,418.22, 159,095.19 and 85,106.46 is: 117,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,418.22 : 159,095.19 = 85,106.46 : x
  2. Step 2: Convert to fraction form
    115,418.22/159,095.19 = 85,106.46/x
  3. Step 3: Cross multiply
    115,418.22x = 159,095.19 × 85,106.46
  4. Step 4: Simplify right side
    115,418.22x = 13,540,028,423.93
  5. Step 5: Solve for x
    x = 13,540,028,423.93/115,418.22
  6. Step 6: Final answer
    x = 117,312.75

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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.