Home / 127,384.08-191,076.58-38,638.36

Finding the Fourth Proportional to 127,384.08, 191,076.58 and 38,638.36

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Solution

The fourth proportional to 127,384.08, 191,076.58 and 38,638.36 is: 57,957.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,384.08 : 191,076.58 = 38,638.36 : x
  2. Step 2: Convert to fraction form
    127,384.08/191,076.58 = 38,638.36/x
  3. Step 3: Cross multiply
    127,384.08x = 191,076.58 × 38,638.36
  4. Step 4: Simplify right side
    127,384.08x = 7,382,885,685.61
  5. Step 5: Solve for x
    x = 7,382,885,685.61/127,384.08
  6. Step 6: Final answer
    x = 57,957.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.