Home / 172,715.64-238,331.40-127,418.80

Finding the Fourth Proportional to 172,715.64, 238,331.40 and 127,418.80

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Solution

The fourth proportional to 172,715.64, 238,331.40 and 127,418.80 is: 175,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,715.64 : 238,331.40 = 127,418.80 : x
  2. Step 2: Convert to fraction form
    172,715.64/238,331.40 = 127,418.80/x
  3. Step 3: Cross multiply
    172,715.64x = 238,331.40 × 127,418.80
  4. Step 4: Simplify right side
    172,715.64x = 30,367,900,990.32
  5. Step 5: Solve for x
    x = 30,367,900,990.32/172,715.64
  6. Step 6: Final answer
    x = 175,826.01

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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.