Home / 118,837.29-163,999.71-65,122.41

Finding the Fourth Proportional to 118,837.29, 163,999.71 and 65,122.41

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Solution

The fourth proportional to 118,837.29, 163,999.71 and 65,122.41 is: 89,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,837.29 : 163,999.71 = 65,122.41 : x
  2. Step 2: Convert to fraction form
    118,837.29/163,999.71 = 65,122.41/x
  3. Step 3: Cross multiply
    118,837.29x = 163,999.71 × 65,122.41
  4. Step 4: Simplify right side
    118,837.29x = 10,680,056,354.50
  5. Step 5: Solve for x
    x = 10,680,056,354.50/118,837.29
  6. Step 6: Final answer
    x = 89,871.25

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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.