Home / 118,346.83-163,317.79-64,631.86

Finding the Fourth Proportional to 118,346.83, 163,317.79 and 64,631.86

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Solution

The fourth proportional to 118,346.83, 163,317.79 and 64,631.86 is: 89,191.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,346.83 : 163,317.79 = 64,631.86 : x
  2. Step 2: Convert to fraction form
    118,346.83/163,317.79 = 64,631.86/x
  3. Step 3: Cross multiply
    118,346.83x = 163,317.79 × 64,631.86
  4. Step 4: Simplify right side
    118,346.83x = 10,555,531,968.92
  5. Step 5: Solve for x
    x = 10,555,531,968.92/118,346.83
  6. Step 6: Final answer
    x = 89,191.51

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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.