Home / 126,168.08-174,103.96-72,415.24

Finding the Fourth Proportional to 126,168.08, 174,103.96 and 72,415.24

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Solution

The fourth proportional to 126,168.08, 174,103.96 and 72,415.24 is: 99,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,168.08 : 174,103.96 = 72,415.24 : x
  2. Step 2: Convert to fraction form
    126,168.08/174,103.96 = 72,415.24/x
  3. Step 3: Cross multiply
    126,168.08x = 174,103.96 × 72,415.24
  4. Step 4: Simplify right side
    126,168.08x = 12,607,780,048.35
  5. Step 5: Solve for x
    x = 12,607,780,048.35/126,168.08
  6. Step 6: Final answer
    x = 99,928.45

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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.