Home / 165,478.16-248,071.80-65,708.72

Finding the Fourth Proportional to 165,478.16, 248,071.80 and 65,708.72

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Solution

The fourth proportional to 165,478.16, 248,071.80 and 65,708.72 is: 98,505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,478.16 : 248,071.80 = 65,708.72 : x
  2. Step 2: Convert to fraction form
    165,478.16/248,071.80 = 65,708.72/x
  3. Step 3: Cross multiply
    165,478.16x = 248,071.80 × 65,708.72
  4. Step 4: Simplify right side
    165,478.16x = 16,300,480,446.10
  5. Step 5: Solve for x
    x = 16,300,480,446.10/165,478.16
  6. Step 6: Final answer
    x = 98,505.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.