Home / 127,776.20-191,664.30-57,792.20

Finding the Fourth Proportional to 127,776.20, 191,664.30 and 57,792.20

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Solution

The fourth proportional to 127,776.20, 191,664.30 and 57,792.20 is: 86,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,776.20 : 191,664.30 = 57,792.20 : x
  2. Step 2: Convert to fraction form
    127,776.20/191,664.30 = 57,792.20/x
  3. Step 3: Cross multiply
    127,776.20x = 191,664.30 × 57,792.20
  4. Step 4: Simplify right side
    127,776.20x = 11,076,701,558.46
  5. Step 5: Solve for x
    x = 11,076,701,558.46/127,776.20
  6. Step 6: Final answer
    x = 86,688.30

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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.