Home / 156,718.70-235,070.75-38,383.77

Finding the Fourth Proportional to 156,718.70, 235,070.75 and 38,383.77

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Solution

The fourth proportional to 156,718.70, 235,070.75 and 38,383.77 is: 57,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,718.70 : 235,070.75 = 38,383.77 : x
  2. Step 2: Convert to fraction form
    156,718.70/235,070.75 = 38,383.77/x
  3. Step 3: Cross multiply
    156,718.70x = 235,070.75 × 38,383.77
  4. Step 4: Simplify right side
    156,718.70x = 9,022,901,409.81
  5. Step 5: Solve for x
    x = 9,022,901,409.81/156,718.70
  6. Step 6: Final answer
    x = 57,573.87

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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.