Home / 195,703.12-270,182.28-128,829.52

Finding the Fourth Proportional to 195,703.12, 270,182.28 and 128,829.52

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Solution

The fourth proportional to 195,703.12, 270,182.28 and 128,829.52 is: 177,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,703.12 : 270,182.28 = 128,829.52 : x
  2. Step 2: Convert to fraction form
    195,703.12/270,182.28 = 128,829.52/x
  3. Step 3: Cross multiply
    195,703.12x = 270,182.28 × 128,829.52
  4. Step 4: Simplify right side
    195,703.12x = 34,807,453,444.91
  5. Step 5: Solve for x
    x = 34,807,453,444.91/195,703.12
  6. Step 6: Final answer
    x = 177,858.45

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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.