Home / 156,684.25-235,113.65-84,635.69

Finding the Fourth Proportional to 156,684.25, 235,113.65 and 84,635.69

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Solution

The fourth proportional to 156,684.25, 235,113.65 and 84,635.69 is: 127,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,684.25 : 235,113.65 = 84,635.69 : x
  2. Step 2: Convert to fraction form
    156,684.25/235,113.65 = 84,635.69/x
  3. Step 3: Cross multiply
    156,684.25x = 235,113.65 × 84,635.69
  4. Step 4: Simplify right side
    156,684.25x = 19,899,005,572.99
  5. Step 5: Solve for x
    x = 19,899,005,572.99/156,684.25
  6. Step 6: Final answer
    x = 127,000.68

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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.