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Finding the Fourth Proportional to 126,482.90, 174,548.90 and 69,125.78

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Solution

The fourth proportional to 126,482.90, 174,548.90 and 69,125.78 is: 95,394.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,482.90 : 174,548.90 = 69,125.78 : x
  2. Step 2: Convert to fraction form
    126,482.90/174,548.90 = 69,125.78/x
  3. Step 3: Cross multiply
    126,482.90x = 174,548.90 × 69,125.78
  4. Step 4: Simplify right side
    126,482.90x = 12,065,828,860.64
  5. Step 5: Solve for x
    x = 12,065,828,860.64/126,482.90
  6. Step 6: Final answer
    x = 95,394.94

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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.