Home / 126,366.72-174,415.98-72,682.75

Finding the Fourth Proportional to 126,366.72, 174,415.98 and 72,682.75

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Solution

The fourth proportional to 126,366.72, 174,415.98 and 72,682.75 is: 100,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,366.72 : 174,415.98 = 72,682.75 : x
  2. Step 2: Convert to fraction form
    126,366.72/174,415.98 = 72,682.75/x
  3. Step 3: Cross multiply
    126,366.72x = 174,415.98 × 72,682.75
  4. Step 4: Simplify right side
    126,366.72x = 12,677,033,070.35
  5. Step 5: Solve for x
    x = 12,677,033,070.35/126,366.72
  6. Step 6: Final answer
    x = 100,319.40

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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.