Home / 126,553-174,646.18-81,918.76

Finding the Fourth Proportional to 126,553, 174,646.18 and 81,918.76

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Solution

The fourth proportional to 126,553, 174,646.18 and 81,918.76 is: 113,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,553 : 174,646.18 = 81,918.76 : x
  2. Step 2: Convert to fraction form
    126,553/174,646.18 = 81,918.76/x
  3. Step 3: Cross multiply
    126,553x = 174,646.18 × 81,918.76
  4. Step 4: Simplify right side
    126,553x = 14,306,798,504.34
  5. Step 5: Solve for x
    x = 14,306,798,504.34/126,553
  6. Step 6: Final answer
    x = 113,049.86

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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.