Home / 105,228.55-144,920.19-98,474.67

Finding the Fourth Proportional to 105,228.55, 144,920.19 and 98,474.67

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Solution

The fourth proportional to 105,228.55, 144,920.19 and 98,474.67 is: 135,618.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,228.55 : 144,920.19 = 98,474.67 : x
  2. Step 2: Convert to fraction form
    105,228.55/144,920.19 = 98,474.67/x
  3. Step 3: Cross multiply
    105,228.55x = 144,920.19 × 98,474.67
  4. Step 4: Simplify right side
    105,228.55x = 14,270,967,701.95
  5. Step 5: Solve for x
    x = 14,270,967,701.95/105,228.55
  6. Step 6: Final answer
    x = 135,618.78

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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.