Home / 141,944.52-212,809.86-85,772.64

Finding the Fourth Proportional to 141,944.52, 212,809.86 and 85,772.64

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Solution

The fourth proportional to 141,944.52, 212,809.86 and 85,772.64 is: 128,594.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,944.52 : 212,809.86 = 85,772.64 : x
  2. Step 2: Convert to fraction form
    141,944.52/212,809.86 = 85,772.64/x
  3. Step 3: Cross multiply
    141,944.52x = 212,809.86 × 85,772.64
  4. Step 4: Simplify right side
    141,944.52x = 18,253,263,510.23
  5. Step 5: Solve for x
    x = 18,253,263,510.23/141,944.52
  6. Step 6: Final answer
    x = 128,594.35

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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.