Home / 104,438.30-144,124.92-56,691.63

Finding the Fourth Proportional to 104,438.30, 144,124.92 and 56,691.63

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Solution

The fourth proportional to 104,438.30, 144,124.92 and 56,691.63 is: 78,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,438.30 : 144,124.92 = 56,691.63 : x
  2. Step 2: Convert to fraction form
    104,438.30/144,124.92 = 56,691.63/x
  3. Step 3: Cross multiply
    104,438.30x = 144,124.92 × 56,691.63
  4. Step 4: Simplify right side
    104,438.30x = 8,170,676,638.42
  5. Step 5: Solve for x
    x = 8,170,676,638.42/104,438.30
  6. Step 6: Final answer
    x = 78,234.49

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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.