Home / 156,944.80-235,071.60-139,434.40

Finding the Fourth Proportional to 156,944.80, 235,071.60 and 139,434.40

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Solution

The fourth proportional to 156,944.80, 235,071.60 and 139,434.40 is: 208,844.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,944.80 : 235,071.60 = 139,434.40 : x
  2. Step 2: Convert to fraction form
    156,944.80/235,071.60 = 139,434.40/x
  3. Step 3: Cross multiply
    156,944.80x = 235,071.60 × 139,434.40
  4. Step 4: Simplify right side
    156,944.80x = 32,777,067,503.04
  5. Step 5: Solve for x
    x = 32,777,067,503.04/156,944.80
  6. Step 6: Final answer
    x = 208,844.56

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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.