Home / 96,515.28-143,917.20-90,080.64

Finding the Fourth Proportional to 96,515.28, 143,917.20 and 90,080.64

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Solution

The fourth proportional to 96,515.28, 143,917.20 and 90,080.64 is: 134,322.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,515.28 : 143,917.20 = 90,080.64 : x
  2. Step 2: Convert to fraction form
    96,515.28/143,917.20 = 90,080.64/x
  3. Step 3: Cross multiply
    96,515.28x = 143,917.20 × 90,080.64
  4. Step 4: Simplify right side
    96,515.28x = 12,964,153,483.01
  5. Step 5: Solve for x
    x = 12,964,153,483.01/96,515.28
  6. Step 6: Final answer
    x = 134,322.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.