Home / 156,629.28-216,150.48-85,010.16

Finding the Fourth Proportional to 156,629.28, 216,150.48 and 85,010.16

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Solution

The fourth proportional to 156,629.28, 216,150.48 and 85,010.16 is: 117,315.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,629.28 : 216,150.48 = 85,010.16 : x
  2. Step 2: Convert to fraction form
    156,629.28/216,150.48 = 85,010.16/x
  3. Step 3: Cross multiply
    156,629.28x = 216,150.48 × 85,010.16
  4. Step 4: Simplify right side
    156,629.28x = 18,374,986,888.88
  5. Step 5: Solve for x
    x = 18,374,986,888.88/156,629.28
  6. Step 6: Final answer
    x = 117,315.15

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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.