Home / 104,403.64-156,465.96-54,378.76

Finding the Fourth Proportional to 104,403.64, 156,465.96 and 54,378.76

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Solution

The fourth proportional to 104,403.64, 156,465.96 and 54,378.76 is: 81,495.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,403.64 : 156,465.96 = 54,378.76 : x
  2. Step 2: Convert to fraction form
    104,403.64/156,465.96 = 54,378.76/x
  3. Step 3: Cross multiply
    104,403.64x = 156,465.96 × 54,378.76
  4. Step 4: Simplify right side
    104,403.64x = 8,508,424,887.01
  5. Step 5: Solve for x
    x = 8,508,424,887.01/104,403.64
  6. Step 6: Final answer
    x = 81,495.48

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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.