Home / 126,553.32-174,638.16-72,801.72

Finding the Fourth Proportional to 126,553.32, 174,638.16 and 72,801.72

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Solution

The fourth proportional to 126,553.32, 174,638.16 and 72,801.72 is: 100,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,553.32 : 174,638.16 = 72,801.72 : x
  2. Step 2: Convert to fraction form
    126,553.32/174,638.16 = 72,801.72/x
  3. Step 3: Cross multiply
    126,553.32x = 174,638.16 × 72,801.72
  4. Step 4: Simplify right side
    126,553.32x = 12,713,958,425.64
  5. Step 5: Solve for x
    x = 12,713,958,425.64/126,553.32
  6. Step 6: Final answer
    x = 100,463.25

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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.