Home / 205,275.54-283,181.95-128,756.32

Finding the Fourth Proportional to 205,275.54, 283,181.95 and 128,756.32

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Solution

The fourth proportional to 205,275.54, 283,181.95 and 128,756.32 is: 177,622.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,275.54 : 283,181.95 = 128,756.32 : x
  2. Step 2: Convert to fraction form
    205,275.54/283,181.95 = 128,756.32/x
  3. Step 3: Cross multiply
    205,275.54x = 283,181.95 × 128,756.32
  4. Step 4: Simplify right side
    205,275.54x = 36,461,466,057.96
  5. Step 5: Solve for x
    x = 36,461,466,057.96/205,275.54
  6. Step 6: Final answer
    x = 177,622.07

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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.