Home / 126,412.80-174,451.20-69,830.40

Finding the Fourth Proportional to 126,412.80, 174,451.20 and 69,830.40

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Solution

The fourth proportional to 126,412.80, 174,451.20 and 69,830.40 is: 96,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,412.80 : 174,451.20 = 69,830.40 : x
  2. Step 2: Convert to fraction form
    126,412.80/174,451.20 = 69,830.40/x
  3. Step 3: Cross multiply
    126,412.80x = 174,451.20 × 69,830.40
  4. Step 4: Simplify right side
    126,412.80x = 12,181,997,076.48
  5. Step 5: Solve for x
    x = 12,181,997,076.48/126,412.80
  6. Step 6: Final answer
    x = 96,366.80

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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.