Home / 126,407.58-189,590.61-42,168.39

Finding the Fourth Proportional to 126,407.58, 189,590.61 and 42,168.39

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Solution

The fourth proportional to 126,407.58, 189,590.61 and 42,168.39 is: 63,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,407.58 : 189,590.61 = 42,168.39 : x
  2. Step 2: Convert to fraction form
    126,407.58/189,590.61 = 42,168.39/x
  3. Step 3: Cross multiply
    126,407.58x = 189,590.61 × 42,168.39
  4. Step 4: Simplify right side
    126,407.58x = 7,994,730,782.82
  5. Step 5: Solve for x
    x = 7,994,730,782.82/126,407.58
  6. Step 6: Final answer
    x = 63,245.66

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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.