Home / 140,730.78-194,207.02-76,198.91

Finding the Fourth Proportional to 140,730.78, 194,207.02 and 76,198.91

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Solution

The fourth proportional to 140,730.78, 194,207.02 and 76,198.91 is: 105,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,730.78 : 194,207.02 = 76,198.91 : x
  2. Step 2: Convert to fraction form
    140,730.78/194,207.02 = 76,198.91/x
  3. Step 3: Cross multiply
    140,730.78x = 194,207.02 × 76,198.91
  4. Step 4: Simplify right side
    140,730.78x = 14,798,362,076.82
  5. Step 5: Solve for x
    x = 14,798,362,076.82/140,730.78
  6. Step 6: Final answer
    x = 105,153.70

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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.