Home / 191,861.64-287,748.72-51,631.20

Finding the Fourth Proportional to 191,861.64, 287,748.72 and 51,631.20

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Solution

The fourth proportional to 191,861.64, 287,748.72 and 51,631.20 is: 77,435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,861.64 : 287,748.72 = 51,631.20 : x
  2. Step 2: Convert to fraction form
    191,861.64/287,748.72 = 51,631.20/x
  3. Step 3: Cross multiply
    191,861.64x = 287,748.72 × 51,631.20
  4. Step 4: Simplify right side
    191,861.64x = 14,856,811,712.06
  5. Step 5: Solve for x
    x = 14,856,811,712.06/191,861.64
  6. Step 6: Final answer
    x = 77,435.03

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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.