Home / 140,422.02-193,883.86-86,780.58

Finding the Fourth Proportional to 140,422.02, 193,883.86 and 86,780.58

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Solution

The fourth proportional to 140,422.02, 193,883.86 and 86,780.58 is: 119,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,422.02 : 193,883.86 = 86,780.58 : x
  2. Step 2: Convert to fraction form
    140,422.02/193,883.86 = 86,780.58/x
  3. Step 3: Cross multiply
    140,422.02x = 193,883.86 × 86,780.58
  4. Step 4: Simplify right side
    140,422.02x = 16,825,353,823.44
  5. Step 5: Solve for x
    x = 16,825,353,823.44/140,422.02
  6. Step 6: Final answer
    x = 119,819.91

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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.