Home / 137,903.04-190,326.78-84,218.94

Finding the Fourth Proportional to 137,903.04, 190,326.78 and 84,218.94

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Solution

The fourth proportional to 137,903.04, 190,326.78 and 84,218.94 is: 116,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,903.04 : 190,326.78 = 84,218.94 : x
  2. Step 2: Convert to fraction form
    137,903.04/190,326.78 = 84,218.94/x
  3. Step 3: Cross multiply
    137,903.04x = 190,326.78 × 84,218.94
  4. Step 4: Simplify right side
    137,903.04x = 16,029,119,665.21
  5. Step 5: Solve for x
    x = 16,029,119,665.21/137,903.04
  6. Step 6: Final answer
    x = 116,234.71

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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.