Home / 156,698.71-216,248.60-85,083.37

Finding the Fourth Proportional to 156,698.71, 216,248.60 and 85,083.37

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Solution

The fourth proportional to 156,698.71, 216,248.60 and 85,083.37 is: 117,417.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,698.71 : 216,248.60 = 85,083.37 : x
  2. Step 2: Convert to fraction form
    156,698.71/216,248.60 = 85,083.37/x
  3. Step 3: Cross multiply
    156,698.71x = 216,248.60 × 85,083.37
  4. Step 4: Simplify right side
    156,698.71x = 18,399,159,317.87
  5. Step 5: Solve for x
    x = 18,399,159,317.87/156,698.71
  6. Step 6: Final answer
    x = 117,417.43

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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.