Home / 199,945.04-275,814.96-128,245.28

Finding the Fourth Proportional to 199,945.04, 275,814.96 and 128,245.28

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Solution

The fourth proportional to 199,945.04, 275,814.96 and 128,245.28 is: 176,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,945.04 : 275,814.96 = 128,245.28 : x
  2. Step 2: Convert to fraction form
    199,945.04/275,814.96 = 128,245.28/x
  3. Step 3: Cross multiply
    199,945.04x = 275,814.96 × 128,245.28
  4. Step 4: Simplify right side
    199,945.04x = 35,371,966,773.39
  5. Step 5: Solve for x
    x = 35,371,966,773.39/199,945.04
  6. Step 6: Final answer
    x = 176,908.45

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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.