Home / 187,403.36-281,197.38-87,570.45

Finding the Fourth Proportional to 187,403.36, 281,197.38 and 87,570.45

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Solution

The fourth proportional to 187,403.36, 281,197.38 and 87,570.45 is: 131,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,403.36 : 281,197.38 = 87,570.45 : x
  2. Step 2: Convert to fraction form
    187,403.36/281,197.38 = 87,570.45/x
  3. Step 3: Cross multiply
    187,403.36x = 281,197.38 × 87,570.45
  4. Step 4: Simplify right side
    187,403.36x = 24,624,581,105.42
  5. Step 5: Solve for x
    x = 24,624,581,105.42/187,403.36
  6. Step 6: Final answer
    x = 131,398.82

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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.