Home / 187,111.42-280,477.97-80,564.86

Finding the Fourth Proportional to 187,111.42, 280,477.97 and 80,564.86

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Solution

The fourth proportional to 187,111.42, 280,477.97 and 80,564.86 is: 120,765.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,111.42 : 280,477.97 = 80,564.86 : x
  2. Step 2: Convert to fraction form
    187,111.42/280,477.97 = 80,564.86/x
  3. Step 3: Cross multiply
    187,111.42x = 280,477.97 × 80,564.86
  4. Step 4: Simplify right side
    187,111.42x = 22,596,668,386.13
  5. Step 5: Solve for x
    x = 22,596,668,386.13/187,111.42
  6. Step 6: Final answer
    x = 120,765.84

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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.