Home / 128,883.51-177,777.45-93,126.06

Finding the Fourth Proportional to 128,883.51, 177,777.45 and 93,126.06

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Solution

The fourth proportional to 128,883.51, 177,777.45 and 93,126.06 is: 128,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,883.51 : 177,777.45 = 93,126.06 : x
  2. Step 2: Convert to fraction form
    128,883.51/177,777.45 = 93,126.06/x
  3. Step 3: Cross multiply
    128,883.51x = 177,777.45 × 93,126.06
  4. Step 4: Simplify right side
    128,883.51x = 16,555,713,475.35
  5. Step 5: Solve for x
    x = 16,555,713,475.35/128,883.51
  6. Step 6: Final answer
    x = 128,454.86

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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.