Home / 76,162.46-105,108.10-42,174.66

Finding the Fourth Proportional to 76,162.46, 105,108.10 and 42,174.66

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Solution

The fourth proportional to 76,162.46, 105,108.10 and 42,174.66 is: 58,203.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,162.46 : 105,108.10 = 42,174.66 : x
  2. Step 2: Convert to fraction form
    76,162.46/105,108.10 = 42,174.66/x
  3. Step 3: Cross multiply
    76,162.46x = 105,108.10 × 42,174.66
  4. Step 4: Simplify right side
    76,162.46x = 4,432,898,380.75
  5. Step 5: Solve for x
    x = 4,432,898,380.75/76,162.46
  6. Step 6: Final answer
    x = 58,203.19

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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.