Home / 118,437.81-163,446.31-64,725.09

Finding the Fourth Proportional to 118,437.81, 163,446.31 and 64,725.09

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Solution

The fourth proportional to 118,437.81, 163,446.31 and 64,725.09 is: 89,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,437.81 : 163,446.31 = 64,725.09 : x
  2. Step 2: Convert to fraction form
    118,437.81/163,446.31 = 64,725.09/x
  3. Step 3: Cross multiply
    118,437.81x = 163,446.31 × 64,725.09
  4. Step 4: Simplify right side
    118,437.81x = 10,579,077,124.92
  5. Step 5: Solve for x
    x = 10,579,077,124.92/118,437.81
  6. Step 6: Final answer
    x = 89,321.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.