Home / 137,967.12-190,446.64-80,625.06

Finding the Fourth Proportional to 137,967.12, 190,446.64 and 80,625.06

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Solution

The fourth proportional to 137,967.12, 190,446.64 and 80,625.06 is: 111,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,967.12 : 190,446.64 = 80,625.06 : x
  2. Step 2: Convert to fraction form
    137,967.12/190,446.64 = 80,625.06/x
  3. Step 3: Cross multiply
    137,967.12x = 190,446.64 × 80,625.06
  4. Step 4: Simplify right side
    137,967.12x = 15,354,771,575.24
  5. Step 5: Solve for x
    x = 15,354,771,575.24/137,967.12
  6. Step 6: Final answer
    x = 111,292.98

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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.