Home / 118,346.77-163,317.70-64,631.80

Finding the Fourth Proportional to 118,346.77, 163,317.70 and 64,631.80

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Solution

The fourth proportional to 118,346.77, 163,317.70 and 64,631.80 is: 89,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,346.77 : 163,317.70 = 64,631.80 : x
  2. Step 2: Convert to fraction form
    118,346.77/163,317.70 = 64,631.80/x
  3. Step 3: Cross multiply
    118,346.77x = 163,317.70 × 64,631.80
  4. Step 4: Simplify right side
    118,346.77x = 10,555,516,922.86
  5. Step 5: Solve for x
    x = 10,555,516,922.86/118,346.77
  6. Step 6: Final answer
    x = 89,191.42

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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.