Home / 123,779.46-170,814.48-67,190.76

Finding the Fourth Proportional to 123,779.46, 170,814.48 and 67,190.76

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Solution

The fourth proportional to 123,779.46, 170,814.48 and 67,190.76 is: 92,722.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,779.46 : 170,814.48 = 67,190.76 : x
  2. Step 2: Convert to fraction form
    123,779.46/170,814.48 = 67,190.76/x
  3. Step 3: Cross multiply
    123,779.46x = 170,814.48 × 67,190.76
  4. Step 4: Simplify right side
    123,779.46x = 11,477,154,730.20
  5. Step 5: Solve for x
    x = 11,477,154,730.20/123,779.46
  6. Step 6: Final answer
    x = 92,722.61

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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.