Home / 156,941.80-235,412.70-51,755.20

Finding the Fourth Proportional to 156,941.80, 235,412.70 and 51,755.20

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Solution

The fourth proportional to 156,941.80, 235,412.70 and 51,755.20 is: 77,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,941.80 : 235,412.70 = 51,755.20 : x
  2. Step 2: Convert to fraction form
    156,941.80/235,412.70 = 51,755.20/x
  3. Step 3: Cross multiply
    156,941.80x = 235,412.70 × 51,755.20
  4. Step 4: Simplify right side
    156,941.80x = 12,183,831,371.04
  5. Step 5: Solve for x
    x = 12,183,831,371.04/156,941.80
  6. Step 6: Final answer
    x = 77,632.80

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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.