Home / 191,680.10-287,523.14-56,757.86

Finding the Fourth Proportional to 191,680.10, 287,523.14 and 56,757.86

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Solution

The fourth proportional to 191,680.10, 287,523.14 and 56,757.86 is: 85,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,680.10 : 287,523.14 = 56,757.86 : x
  2. Step 2: Convert to fraction form
    191,680.10/287,523.14 = 56,757.86/x
  3. Step 3: Cross multiply
    191,680.10x = 287,523.14 × 56,757.86
  4. Step 4: Simplify right side
    191,680.10x = 16,319,196,405.48
  5. Step 5: Solve for x
    x = 16,319,196,405.48/191,680.10
  6. Step 6: Final answer
    x = 85,137.67

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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.