Home / 76,156.61-113,689.80-66,194.82

Finding the Fourth Proportional to 76,156.61, 113,689.80 and 66,194.82

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Solution

The fourth proportional to 76,156.61, 113,689.80 and 66,194.82 is: 98,818.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,156.61 : 113,689.80 = 66,194.82 : x
  2. Step 2: Convert to fraction form
    76,156.61/113,689.80 = 66,194.82/x
  3. Step 3: Cross multiply
    76,156.61x = 113,689.80 × 66,194.82
  4. Step 4: Simplify right side
    76,156.61x = 7,525,675,846.84
  5. Step 5: Solve for x
    x = 7,525,675,846.84/76,156.61
  6. Step 6: Final answer
    x = 98,818.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.