Home / 156,012.96-215,297.64-84,392.76

Finding the Fourth Proportional to 156,012.96, 215,297.64 and 84,392.76

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Solution

The fourth proportional to 156,012.96, 215,297.64 and 84,392.76 is: 116,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,012.96 : 215,297.64 = 84,392.76 : x
  2. Step 2: Convert to fraction form
    156,012.96/215,297.64 = 84,392.76/x
  3. Step 3: Cross multiply
    156,012.96x = 215,297.64 × 84,392.76
  4. Step 4: Simplify right side
    156,012.96x = 18,169,562,061.09
  5. Step 5: Solve for x
    x = 18,169,562,061.09/156,012.96
  6. Step 6: Final answer
    x = 116,461.88

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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.