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Finding the Fourth Proportional to 173,912.30, 260,826.45 and 72,655.63

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Solution

The fourth proportional to 173,912.30, 260,826.45 and 72,655.63 is: 108,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,912.30 : 260,826.45 = 72,655.63 : x
  2. Step 2: Convert to fraction form
    173,912.30/260,826.45 = 72,655.63/x
  3. Step 3: Cross multiply
    173,912.30x = 260,826.45 × 72,655.63
  4. Step 4: Simplify right side
    173,912.30x = 18,950,510,045.41
  5. Step 5: Solve for x
    x = 18,950,510,045.41/173,912.30
  6. Step 6: Final answer
    x = 108,965.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.