Home / 126,194.98-174,149.22-72,490.40

Finding the Fourth Proportional to 126,194.98, 174,149.22 and 72,490.40

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Solution

The fourth proportional to 126,194.98, 174,149.22 and 72,490.40 is: 100,036.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,194.98 : 174,149.22 = 72,490.40 : x
  2. Step 2: Convert to fraction form
    126,194.98/174,149.22 = 72,490.40/x
  3. Step 3: Cross multiply
    126,194.98x = 174,149.22 × 72,490.40
  4. Step 4: Simplify right side
    126,194.98x = 12,624,146,617.49
  5. Step 5: Solve for x
    x = 12,624,146,617.49/126,194.98
  6. Step 6: Final answer
    x = 100,036.84

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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.