Home / 172,645.88-238,316.08-127,685.70

Finding the Fourth Proportional to 172,645.88, 238,316.08 and 127,685.70

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Solution

The fourth proportional to 172,645.88, 238,316.08 and 127,685.70 is: 176,254.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,645.88 : 238,316.08 = 127,685.70 : x
  2. Step 2: Convert to fraction form
    172,645.88/238,316.08 = 127,685.70/x
  3. Step 3: Cross multiply
    172,645.88x = 238,316.08 × 127,685.70
  4. Step 4: Simplify right side
    172,645.88x = 30,429,555,496.06
  5. Step 5: Solve for x
    x = 30,429,555,496.06/172,645.88
  6. Step 6: Final answer
    x = 176,254.17

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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.