Home / 118,815.29-163,965.07-65,102.35

Finding the Fourth Proportional to 118,815.29, 163,965.07 and 65,102.35

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Solution

The fourth proportional to 118,815.29, 163,965.07 and 65,102.35 is: 89,841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,815.29 : 163,965.07 = 65,102.35 : x
  2. Step 2: Convert to fraction form
    118,815.29/163,965.07 = 65,102.35/x
  3. Step 3: Cross multiply
    118,815.29x = 163,965.07 × 65,102.35
  4. Step 4: Simplify right side
    118,815.29x = 10,674,511,374.91
  5. Step 5: Solve for x
    x = 10,674,511,374.91/118,815.29
  6. Step 6: Final answer
    x = 89,841.23

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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.