Home / 137,875.12-190,262.64-84,249.88

Finding the Fourth Proportional to 137,875.12, 190,262.64 and 84,249.88

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Solution

The fourth proportional to 137,875.12, 190,262.64 and 84,249.88 is: 116,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,875.12 : 190,262.64 = 84,249.88 : x
  2. Step 2: Convert to fraction form
    137,875.12/190,262.64 = 84,249.88/x
  3. Step 3: Cross multiply
    137,875.12x = 190,262.64 × 84,249.88
  4. Step 4: Simplify right side
    137,875.12x = 16,029,604,588.48
  5. Step 5: Solve for x
    x = 16,029,604,588.48/137,875.12
  6. Step 6: Final answer
    x = 116,261.76

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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.