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Finding the Fourth Proportional to 126,675.81, 174,809.90 and 69,314.90

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Solution

The fourth proportional to 126,675.81, 174,809.90 and 69,314.90 is: 95,653.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,675.81 : 174,809.90 = 69,314.90 : x
  2. Step 2: Convert to fraction form
    126,675.81/174,809.90 = 69,314.90/x
  3. Step 3: Cross multiply
    126,675.81x = 174,809.90 × 69,314.90
  4. Step 4: Simplify right side
    126,675.81x = 12,116,930,036.75
  5. Step 5: Solve for x
    x = 12,116,930,036.75/126,675.81
  6. Step 6: Final answer
    x = 95,653.07

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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.