Home / 137,422.04-189,679.74-80,851.64

Finding the Fourth Proportional to 137,422.04, 189,679.74 and 80,851.64

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Solution

The fourth proportional to 137,422.04, 189,679.74 and 80,851.64 is: 111,597.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,422.04 : 189,679.74 = 80,851.64 : x
  2. Step 2: Convert to fraction form
    137,422.04/189,679.74 = 80,851.64/x
  3. Step 3: Cross multiply
    137,422.04x = 189,679.74 × 80,851.64
  4. Step 4: Simplify right side
    137,422.04x = 15,335,918,053.77
  5. Step 5: Solve for x
    x = 15,335,918,053.77/137,422.04
  6. Step 6: Final answer
    x = 111,597.22

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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.