Home / 105,066.40-144,811.92-82,256.80

Finding the Fourth Proportional to 105,066.40, 144,811.92 and 82,256.80

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Solution

The fourth proportional to 105,066.40, 144,811.92 and 82,256.80 is: 113,373.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,066.40 : 144,811.92 = 82,256.80 : x
  2. Step 2: Convert to fraction form
    105,066.40/144,811.92 = 82,256.80/x
  3. Step 3: Cross multiply
    105,066.40x = 144,811.92 × 82,256.80
  4. Step 4: Simplify right side
    105,066.40x = 11,911,765,141.06
  5. Step 5: Solve for x
    x = 11,911,765,141.06/105,066.40
  6. Step 6: Final answer
    x = 113,373.69

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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.