Home / 156,936.12-216,569.30-85,317.93

Finding the Fourth Proportional to 156,936.12, 216,569.30 and 85,317.93

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Solution

The fourth proportional to 156,936.12, 216,569.30 and 85,317.93 is: 117,737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,936.12 : 216,569.30 = 85,317.93 : x
  2. Step 2: Convert to fraction form
    156,936.12/216,569.30 = 85,317.93/x
  3. Step 3: Cross multiply
    156,936.12x = 216,569.30 × 85,317.93
  4. Step 4: Simplify right side
    156,936.12x = 18,477,243,950.96
  5. Step 5: Solve for x
    x = 18,477,243,950.96/156,936.12
  6. Step 6: Final answer
    x = 117,737.36

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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.