Home / 187,019.48-280,777.54-87,249.45

Finding the Fourth Proportional to 187,019.48, 280,777.54 and 87,249.45

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Solution

The fourth proportional to 187,019.48, 280,777.54 and 87,249.45 is: 130,990.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,019.48 : 280,777.54 = 87,249.45 : x
  2. Step 2: Convert to fraction form
    187,019.48/280,777.54 = 87,249.45/x
  3. Step 3: Cross multiply
    187,019.48x = 280,777.54 × 87,249.45
  4. Step 4: Simplify right side
    187,019.48x = 24,497,686,935.74
  5. Step 5: Solve for x
    x = 24,497,686,935.74/187,019.48
  6. Step 6: Final answer
    x = 130,990.03

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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.