Home / 126,126.72-174,052.80-69,543.36

Finding the Fourth Proportional to 126,126.72, 174,052.80 and 69,543.36

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Solution

The fourth proportional to 126,126.72, 174,052.80 and 69,543.36 is: 95,968.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,126.72 : 174,052.80 = 69,543.36 : x
  2. Step 2: Convert to fraction form
    126,126.72/174,052.80 = 69,543.36/x
  3. Step 3: Cross multiply
    126,126.72x = 174,052.80 × 69,543.36
  4. Step 4: Simplify right side
    126,126.72x = 12,104,216,529.41
  5. Step 5: Solve for x
    x = 12,104,216,529.41/126,126.72
  6. Step 6: Final answer
    x = 95,968.69

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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.