Home / 112,714.12-155,190.90-91,563.40

Finding the Fourth Proportional to 112,714.12, 155,190.90 and 91,563.40

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Solution

The fourth proportional to 112,714.12, 155,190.90 and 91,563.40 is: 126,069.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,714.12 : 155,190.90 = 91,563.40 : x
  2. Step 2: Convert to fraction form
    112,714.12/155,190.90 = 91,563.40/x
  3. Step 3: Cross multiply
    112,714.12x = 155,190.90 × 91,563.40
  4. Step 4: Simplify right side
    112,714.12x = 14,209,806,453.06
  5. Step 5: Solve for x
    x = 14,209,806,453.06/112,714.12
  6. Step 6: Final answer
    x = 126,069.44

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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.