Home / 187,090.40-280,635.60-112,440.80

Finding the Fourth Proportional to 187,090.40, 280,635.60 and 112,440.80

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Solution

The fourth proportional to 187,090.40, 280,635.60 and 112,440.80 is: 168,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,090.40 : 280,635.60 = 112,440.80 : x
  2. Step 2: Convert to fraction form
    187,090.40/280,635.60 = 112,440.80/x
  3. Step 3: Cross multiply
    187,090.40x = 280,635.60 × 112,440.80
  4. Step 4: Simplify right side
    187,090.40x = 31,554,891,372.48
  5. Step 5: Solve for x
    x = 31,554,891,372.48/187,090.40
  6. Step 6: Final answer
    x = 168,661.20

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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.