Home / 187,431.21-280,851.57-103,066.07

Finding the Fourth Proportional to 187,431.21, 280,851.57 and 103,066.07

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Solution

The fourth proportional to 187,431.21, 280,851.57 and 103,066.07 is: 154,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,431.21 : 280,851.57 = 103,066.07 : x
  2. Step 2: Convert to fraction form
    187,431.21/280,851.57 = 103,066.07/x
  3. Step 3: Cross multiply
    187,431.21x = 280,851.57 × 103,066.07
  4. Step 4: Simplify right side
    187,431.21x = 28,946,266,168.97
  5. Step 5: Solve for x
    x = 28,946,266,168.97/187,431.21
  6. Step 6: Final answer
    x = 154,436.75

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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.