Home / 187,090.90-280,636.35-112,441.30

Finding the Fourth Proportional to 187,090.90, 280,636.35 and 112,441.30

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Solution

The fourth proportional to 187,090.90, 280,636.35 and 112,441.30 is: 168,661.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,090.90 : 280,636.35 = 112,441.30 : x
  2. Step 2: Convert to fraction form
    187,090.90/280,636.35 = 112,441.30/x
  3. Step 3: Cross multiply
    187,090.90x = 280,636.35 × 112,441.30
  4. Step 4: Simplify right side
    187,090.90x = 31,555,116,021.26
  5. Step 5: Solve for x
    x = 31,555,116,021.26/187,090.90
  6. Step 6: Final answer
    x = 168,661.95

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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.