Home / 156,945.20-235,417.80-83,217.20

Finding the Fourth Proportional to 156,945.20, 235,417.80 and 83,217.20

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Solution

The fourth proportional to 156,945.20, 235,417.80 and 83,217.20 is: 124,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,945.20 : 235,417.80 = 83,217.20 : x
  2. Step 2: Convert to fraction form
    156,945.20/235,417.80 = 83,217.20/x
  3. Step 3: Cross multiply
    156,945.20x = 235,417.80 × 83,217.20
  4. Step 4: Simplify right side
    156,945.20x = 19,590,810,146.16
  5. Step 5: Solve for x
    x = 19,590,810,146.16/156,945.20
  6. Step 6: Final answer
    x = 124,825.80

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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.