Home / 104,649.12-156,970.20-45,484.86

Finding the Fourth Proportional to 104,649.12, 156,970.20 and 45,484.86

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Solution

The fourth proportional to 104,649.12, 156,970.20 and 45,484.86 is: 68,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,649.12 : 156,970.20 = 45,484.86 : x
  2. Step 2: Convert to fraction form
    104,649.12/156,970.20 = 45,484.86/x
  3. Step 3: Cross multiply
    104,649.12x = 156,970.20 × 45,484.86
  4. Step 4: Simplify right side
    104,649.12x = 7,139,767,571.17
  5. Step 5: Solve for x
    x = 7,139,767,571.17/104,649.12
  6. Step 6: Final answer
    x = 68,225.78

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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.