Home / 105,110.40-158,258.04-92,707.68

Finding the Fourth Proportional to 105,110.40, 158,258.04 and 92,707.68

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Solution

The fourth proportional to 105,110.40, 158,258.04 and 92,707.68 is: 139,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,110.40 : 158,258.04 = 92,707.68 : x
  2. Step 2: Convert to fraction form
    105,110.40/158,258.04 = 92,707.68/x
  3. Step 3: Cross multiply
    105,110.40x = 158,258.04 × 92,707.68
  4. Step 4: Simplify right side
    105,110.40x = 14,671,735,729.75
  5. Step 5: Solve for x
    x = 14,671,735,729.75/105,110.40
  6. Step 6: Final answer
    x = 139,584.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.