Home / 140,643.02-194,087.60-76,984.86

Finding the Fourth Proportional to 140,643.02, 194,087.60 and 76,984.86

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Solution

The fourth proportional to 140,643.02, 194,087.60 and 76,984.86 is: 106,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,643.02 : 194,087.60 = 76,984.86 : x
  2. Step 2: Convert to fraction form
    140,643.02/194,087.60 = 76,984.86/x
  3. Step 3: Cross multiply
    140,643.02x = 194,087.60 × 76,984.86
  4. Step 4: Simplify right side
    140,643.02x = 14,941,806,713.74
  5. Step 5: Solve for x
    x = 14,941,806,713.74/140,643.02
  6. Step 6: Final answer
    x = 106,239.23

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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.