Home / 118,379.08-163,357.18-64,654.21

Finding the Fourth Proportional to 118,379.08, 163,357.18 and 64,654.21

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Solution

The fourth proportional to 118,379.08, 163,357.18 and 64,654.21 is: 89,219.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,379.08 : 163,357.18 = 64,654.21 : x
  2. Step 2: Convert to fraction form
    118,379.08/163,357.18 = 64,654.21/x
  3. Step 3: Cross multiply
    118,379.08x = 163,357.18 × 64,654.21
  4. Step 4: Simplify right side
    118,379.08x = 10,561,729,420.73
  5. Step 5: Solve for x
    x = 10,561,729,420.73/118,379.08
  6. Step 6: Final answer
    x = 89,219.56

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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.