Home / 86,946.06-119,780.71-81,714.68

Finding the Fourth Proportional to 86,946.06, 119,780.71 and 81,714.68

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Solution

The fourth proportional to 86,946.06, 119,780.71 and 81,714.68 is: 112,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,946.06 : 119,780.71 = 81,714.68 : x
  2. Step 2: Convert to fraction form
    86,946.06/119,780.71 = 81,714.68/x
  3. Step 3: Cross multiply
    86,946.06x = 119,780.71 × 81,714.68
  4. Step 4: Simplify right side
    86,946.06x = 9,787,842,387.82
  5. Step 5: Solve for x
    x = 9,787,842,387.82/86,946.06
  6. Step 6: Final answer
    x = 112,573.73

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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.