Home / 118,609.92-163,675.08-64,890.72

Finding the Fourth Proportional to 118,609.92, 163,675.08 and 64,890.72

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Solution

The fourth proportional to 118,609.92, 163,675.08 and 64,890.72 is: 89,545.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,609.92 : 163,675.08 = 64,890.72 : x
  2. Step 2: Convert to fraction form
    118,609.92/163,675.08 = 64,890.72/x
  3. Step 3: Cross multiply
    118,609.92x = 163,675.08 × 64,890.72
  4. Step 4: Simplify right side
    118,609.92x = 10,620,993,787.26
  5. Step 5: Solve for x
    x = 10,620,993,787.26/118,609.92
  6. Step 6: Final answer
    x = 89,545.58

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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.