Home / 156,911.24-216,537.90-85,291.16

Finding the Fourth Proportional to 156,911.24, 216,537.90 and 85,291.16

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Solution

The fourth proportional to 156,911.24, 216,537.90 and 85,291.16 is: 117,702.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,911.24 : 216,537.90 = 85,291.16 : x
  2. Step 2: Convert to fraction form
    156,911.24/216,537.90 = 85,291.16/x
  3. Step 3: Cross multiply
    156,911.24x = 216,537.90 × 85,291.16
  4. Step 4: Simplify right side
    156,911.24x = 18,468,768,674.96
  5. Step 5: Solve for x
    x = 18,468,768,674.96/156,911.24
  6. Step 6: Final answer
    x = 117,702.01

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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.