Home / 126,309.06-174,315.22-72,590.86

Finding the Fourth Proportional to 126,309.06, 174,315.22 and 72,590.86

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Solution

The fourth proportional to 126,309.06, 174,315.22 and 72,590.86 is: 100,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,309.06 : 174,315.22 = 72,590.86 : x
  2. Step 2: Convert to fraction form
    126,309.06/174,315.22 = 72,590.86/x
  3. Step 3: Cross multiply
    126,309.06x = 174,315.22 × 72,590.86
  4. Step 4: Simplify right side
    126,309.06x = 12,653,691,730.89
  5. Step 5: Solve for x
    x = 12,653,691,730.89/126,309.06
  6. Step 6: Final answer
    x = 100,180.40

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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.