Home / 113,731.72-156,949.38-63,430.68

Finding the Fourth Proportional to 113,731.72, 156,949.38 and 63,430.68

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Solution

The fourth proportional to 113,731.72, 156,949.38 and 63,430.68 is: 87,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,731.72 : 156,949.38 = 63,430.68 : x
  2. Step 2: Convert to fraction form
    113,731.72/156,949.38 = 63,430.68/x
  3. Step 3: Cross multiply
    113,731.72x = 156,949.38 × 63,430.68
  4. Step 4: Simplify right side
    113,731.72x = 9,955,405,898.98
  5. Step 5: Solve for x
    x = 9,955,405,898.98/113,731.72
  6. Step 6: Final answer
    x = 87,534.12

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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.