Home / 112,630.20-168,653.70-89,107.80

Finding the Fourth Proportional to 112,630.20, 168,653.70 and 89,107.80

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Solution

The fourth proportional to 112,630.20, 168,653.70 and 89,107.80 is: 133,431.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,630.20 : 168,653.70 = 89,107.80 : x
  2. Step 2: Convert to fraction form
    112,630.20/168,653.70 = 89,107.80/x
  3. Step 3: Cross multiply
    112,630.20x = 168,653.70 × 89,107.80
  4. Step 4: Simplify right side
    112,630.20x = 15,028,360,168.86
  5. Step 5: Solve for x
    x = 15,028,360,168.86/112,630.20
  6. Step 6: Final answer
    x = 133,431.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.