Home / 141,539.76-195,326.79-77,009.76

Finding the Fourth Proportional to 141,539.76, 195,326.79 and 77,009.76

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Solution

The fourth proportional to 141,539.76, 195,326.79 and 77,009.76 is: 106,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,539.76 : 195,326.79 = 77,009.76 : x
  2. Step 2: Convert to fraction form
    141,539.76/195,326.79 = 77,009.76/x
  3. Step 3: Cross multiply
    141,539.76x = 195,326.79 × 77,009.76
  4. Step 4: Simplify right side
    141,539.76x = 15,042,068,538.63
  5. Step 5: Solve for x
    x = 15,042,068,538.63/141,539.76
  6. Step 6: Final answer
    x = 106,274.51

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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.