Home / 156,883.82-216,501.11-85,264.01

Finding the Fourth Proportional to 156,883.82, 216,501.11 and 85,264.01

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Solution

The fourth proportional to 156,883.82, 216,501.11 and 85,264.01 is: 117,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,883.82 : 216,501.11 = 85,264.01 : x
  2. Step 2: Convert to fraction form
    156,883.82/216,501.11 = 85,264.01/x
  3. Step 3: Cross multiply
    156,883.82x = 216,501.11 × 85,264.01
  4. Step 4: Simplify right side
    156,883.82x = 18,459,751,299.23
  5. Step 5: Solve for x
    x = 18,459,751,299.23/156,883.82
  6. Step 6: Final answer
    x = 117,665.11

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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.