Home / 122,254.47-168,734.75-79,739.19

Finding the Fourth Proportional to 122,254.47, 168,734.75 and 79,739.19

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Solution

The fourth proportional to 122,254.47, 168,734.75 and 79,739.19 is: 110,055.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,254.47 : 168,734.75 = 79,739.19 : x
  2. Step 2: Convert to fraction form
    122,254.47/168,734.75 = 79,739.19/x
  3. Step 3: Cross multiply
    122,254.47x = 168,734.75 × 79,739.19
  4. Step 4: Simplify right side
    122,254.47x = 13,454,771,891.16
  5. Step 5: Solve for x
    x = 13,454,771,891.16/122,254.47
  6. Step 6: Final answer
    x = 110,055.46

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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.