Home / 140,653.26-194,094.02-76,978.74

Finding the Fourth Proportional to 140,653.26, 194,094.02 and 76,978.74

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Solution

The fourth proportional to 140,653.26, 194,094.02 and 76,978.74 is: 106,226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,653.26 : 194,094.02 = 76,978.74 : x
  2. Step 2: Convert to fraction form
    140,653.26/194,094.02 = 76,978.74/x
  3. Step 3: Cross multiply
    140,653.26x = 194,094.02 × 76,978.74
  4. Step 4: Simplify right side
    140,653.26x = 14,941,113,101.13
  5. Step 5: Solve for x
    x = 14,941,113,101.13/140,653.26
  6. Step 6: Final answer
    x = 106,226.57

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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.