Home / 191,865.12-287,795.88-107,625.12

Finding the Fourth Proportional to 191,865.12, 287,795.88 and 107,625.12

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Solution

The fourth proportional to 191,865.12, 287,795.88 and 107,625.12 is: 161,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,865.12 : 287,795.88 = 107,625.12 : x
  2. Step 2: Convert to fraction form
    191,865.12/287,795.88 = 107,625.12/x
  3. Step 3: Cross multiply
    191,865.12x = 287,795.88 × 107,625.12
  4. Step 4: Simplify right side
    191,865.12x = 30,974,066,120.51
  5. Step 5: Solve for x
    x = 30,974,066,120.51/191,865.12
  6. Step 6: Final answer
    x = 161,436.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.