Home / 126,783.09-174,959.19-69,421.86

Finding the Fourth Proportional to 126,783.09, 174,959.19 and 69,421.86

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Solution

The fourth proportional to 126,783.09, 174,959.19 and 69,421.86 is: 95,801.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,783.09 : 174,959.19 = 69,421.86 : x
  2. Step 2: Convert to fraction form
    126,783.09/174,959.19 = 69,421.86/x
  3. Step 3: Cross multiply
    126,783.09x = 174,959.19 × 69,421.86
  4. Step 4: Simplify right side
    126,783.09x = 12,145,992,393.89
  5. Step 5: Solve for x
    x = 12,145,992,393.89/126,783.09
  6. Step 6: Final answer
    x = 95,801.36

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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.