Home / 157,078.20-216,738.54-93,431.64

Finding the Fourth Proportional to 157,078.20, 216,738.54 and 93,431.64

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Solution

The fourth proportional to 157,078.20, 216,738.54 and 93,431.64 is: 128,918.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,078.20 : 216,738.54 = 93,431.64 : x
  2. Step 2: Convert to fraction form
    157,078.20/216,738.54 = 93,431.64/x
  3. Step 3: Cross multiply
    157,078.20x = 216,738.54 × 93,431.64
  4. Step 4: Simplify right side
    157,078.20x = 20,250,237,243.41
  5. Step 5: Solve for x
    x = 20,250,237,243.41/157,078.20
  6. Step 6: Final answer
    x = 128,918.19

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1.5x scale

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.