Home / 117,806.60-162,577.33-65,420.06

Finding the Fourth Proportional to 117,806.60, 162,577.33 and 65,420.06

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Solution

The fourth proportional to 117,806.60, 162,577.33 and 65,420.06 is: 90,282.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,806.60 : 162,577.33 = 65,420.06 : x
  2. Step 2: Convert to fraction form
    117,806.60/162,577.33 = 65,420.06/x
  3. Step 3: Cross multiply
    117,806.60x = 162,577.33 × 65,420.06
  4. Step 4: Simplify right side
    117,806.60x = 10,635,817,706.80
  5. Step 5: Solve for x
    x = 10,635,817,706.80/117,806.60
  6. Step 6: Final answer
    x = 90,282.02

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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.