Home / 114,585.58-158,157.16-78,301.70

Finding the Fourth Proportional to 114,585.58, 158,157.16 and 78,301.70

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Solution

The fourth proportional to 114,585.58, 158,157.16 and 78,301.70 is: 108,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,585.58 : 158,157.16 = 78,301.70 : x
  2. Step 2: Convert to fraction form
    114,585.58/158,157.16 = 78,301.70/x
  3. Step 3: Cross multiply
    114,585.58x = 158,157.16 × 78,301.70
  4. Step 4: Simplify right side
    114,585.58x = 12,383,974,495.17
  5. Step 5: Solve for x
    x = 12,383,974,495.17/114,585.58
  6. Step 6: Final answer
    x = 108,076.20

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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.