Home / 156,802.47-216,389.25-85,183.62

Finding the Fourth Proportional to 156,802.47, 216,389.25 and 85,183.62

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Solution

The fourth proportional to 156,802.47, 216,389.25 and 85,183.62 is: 117,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,802.47 : 216,389.25 = 85,183.62 : x
  2. Step 2: Convert to fraction form
    156,802.47/216,389.25 = 85,183.62/x
  3. Step 3: Cross multiply
    156,802.47x = 216,389.25 × 85,183.62
  4. Step 4: Simplify right side
    156,802.47x = 18,432,819,644.09
  5. Step 5: Solve for x
    x = 18,432,819,644.09/156,802.47
  6. Step 6: Final answer
    x = 117,554.40

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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.