Home / 118,379.77-163,362.03-64,663.40

Finding the Fourth Proportional to 118,379.77, 163,362.03 and 64,663.40

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Solution

The fourth proportional to 118,379.77, 163,362.03 and 64,663.40 is: 89,234.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,379.77 : 163,362.03 = 64,663.40 : x
  2. Step 2: Convert to fraction form
    118,379.77/163,362.03 = 64,663.40/x
  3. Step 3: Cross multiply
    118,379.77x = 163,362.03 × 64,663.40
  4. Step 4: Simplify right side
    118,379.77x = 10,563,544,290.70
  5. Step 5: Solve for x
    x = 10,563,544,290.70/118,379.77
  6. Step 6: Final answer
    x = 89,234.37

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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.