Home / 156,881.28-235,097.28-121,656

Finding the Fourth Proportional to 156,881.28, 235,097.28 and 121,656

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Solution

The fourth proportional to 156,881.28, 235,097.28 and 121,656 is: 182,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,881.28 : 235,097.28 = 121,656 : x
  2. Step 2: Convert to fraction form
    156,881.28/235,097.28 = 121,656/x
  3. Step 3: Cross multiply
    156,881.28x = 235,097.28 × 121,656
  4. Step 4: Simplify right side
    156,881.28x = 28,600,994,695.68
  5. Step 5: Solve for x
    x = 28,600,994,695.68/156,881.28
  6. Step 6: Final answer
    x = 182,309.80

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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.