Home / 185,113.86-255,457.35-100,230.90

Finding the Fourth Proportional to 185,113.86, 255,457.35 and 100,230.90

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Solution

The fourth proportional to 185,113.86, 255,457.35 and 100,230.90 is: 138,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,113.86 : 255,457.35 = 100,230.90 : x
  2. Step 2: Convert to fraction form
    185,113.86/255,457.35 = 100,230.90/x
  3. Step 3: Cross multiply
    185,113.86x = 255,457.35 × 100,230.90
  4. Step 4: Simplify right side
    185,113.86x = 25,604,720,102.12
  5. Step 5: Solve for x
    x = 25,604,720,102.12/185,113.86
  6. Step 6: Final answer
    x = 138,318.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.