Home / 138,514.04-191,251.74-84,872.32

Finding the Fourth Proportional to 138,514.04, 191,251.74 and 84,872.32

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Solution

The fourth proportional to 138,514.04, 191,251.74 and 84,872.32 is: 117,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,514.04 : 191,251.74 = 84,872.32 : x
  2. Step 2: Convert to fraction form
    138,514.04/191,251.74 = 84,872.32/x
  3. Step 3: Cross multiply
    138,514.04x = 191,251.74 × 84,872.32
  4. Step 4: Simplify right side
    138,514.04x = 16,231,978,877.84
  5. Step 5: Solve for x
    x = 16,231,978,877.84/138,514.04
  6. Step 6: Final answer
    x = 117,186.52

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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.