Home / 126,427.69-174,475.52-72,712.75

Finding the Fourth Proportional to 126,427.69, 174,475.52 and 72,712.75

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Solution

The fourth proportional to 126,427.69, 174,475.52 and 72,712.75 is: 100,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,427.69 : 174,475.52 = 72,712.75 : x
  2. Step 2: Convert to fraction form
    126,427.69/174,475.52 = 72,712.75/x
  3. Step 3: Cross multiply
    126,427.69x = 174,475.52 × 72,712.75
  4. Step 4: Simplify right side
    126,427.69x = 12,686,594,866.88
  5. Step 5: Solve for x
    x = 12,686,594,866.88/126,427.69
  6. Step 6: Final answer
    x = 100,346.65

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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.