Home / 176,516.80-243,310.08-138,211.84

Finding the Fourth Proportional to 176,516.80, 243,310.08 and 138,211.84

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Solution

The fourth proportional to 176,516.80, 243,310.08 and 138,211.84 is: 190,510.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,516.80 : 243,310.08 = 138,211.84 : x
  2. Step 2: Convert to fraction form
    176,516.80/243,310.08 = 138,211.84/x
  3. Step 3: Cross multiply
    176,516.80x = 243,310.08 × 138,211.84
  4. Step 4: Simplify right side
    176,516.80x = 33,628,333,847.35
  5. Step 5: Solve for x
    x = 33,628,333,847.35/176,516.80
  6. Step 6: Final answer
    x = 190,510.67

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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.