Home / 187,903.70-281,480-112,982.81

Finding the Fourth Proportional to 187,903.70, 281,480 and 112,982.81

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Solution

The fourth proportional to 187,903.70, 281,480 and 112,982.81 is: 169,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,903.70 : 281,480 = 112,982.81 : x
  2. Step 2: Convert to fraction form
    187,903.70/281,480 = 112,982.81/x
  3. Step 3: Cross multiply
    187,903.70x = 281,480 × 112,982.81
  4. Step 4: Simplify right side
    187,903.70x = 31,802,401,358.80
  5. Step 5: Solve for x
    x = 31,802,401,358.80/187,903.70
  6. Step 6: Final answer
    x = 169,248.41

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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.