Home / 118,830.29-163,985.81-64,382.54

Finding the Fourth Proportional to 118,830.29, 163,985.81 and 64,382.54

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Solution

The fourth proportional to 118,830.29, 163,985.81 and 64,382.54 is: 88,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,830.29 : 163,985.81 = 64,382.54 : x
  2. Step 2: Convert to fraction form
    118,830.29/163,985.81 = 64,382.54/x
  3. Step 3: Cross multiply
    118,830.29x = 163,985.81 × 64,382.54
  4. Step 4: Simplify right side
    118,830.29x = 10,557,821,829.92
  5. Step 5: Solve for x
    x = 10,557,821,829.92/118,830.29
  6. Step 6: Final answer
    x = 88,847.90

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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.