Home / 126,645.86-189,968.74-47,741.63

Finding the Fourth Proportional to 126,645.86, 189,968.74 and 47,741.63

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Solution

The fourth proportional to 126,645.86, 189,968.74 and 47,741.63 is: 71,612.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,645.86 : 189,968.74 = 47,741.63 : x
  2. Step 2: Convert to fraction form
    126,645.86/189,968.74 = 47,741.63/x
  3. Step 3: Cross multiply
    126,645.86x = 189,968.74 × 47,741.63
  4. Step 4: Simplify right side
    126,645.86x = 9,069,417,296.65
  5. Step 5: Solve for x
    x = 9,069,417,296.65/126,645.86
  6. Step 6: Final answer
    x = 71,612.43

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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.