Home / 156,974.80-235,116.60-139,464.40

Finding the Fourth Proportional to 156,974.80, 235,116.60 and 139,464.40

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Solution

The fourth proportional to 156,974.80, 235,116.60 and 139,464.40 is: 208,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974.80 : 235,116.60 = 139,464.40 : x
  2. Step 2: Convert to fraction form
    156,974.80/235,116.60 = 139,464.40/x
  3. Step 3: Cross multiply
    156,974.80x = 235,116.60 × 139,464.40
  4. Step 4: Simplify right side
    156,974.80x = 32,790,395,549.04
  5. Step 5: Solve for x
    x = 32,790,395,549.04/156,974.80
  6. Step 6: Final answer
    x = 208,889.55

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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.