Home / 151,508.16-209,004.36-115,635.90

Finding the Fourth Proportional to 151,508.16, 209,004.36 and 115,635.90

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Solution

The fourth proportional to 151,508.16, 209,004.36 and 115,635.90 is: 159,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,508.16 : 209,004.36 = 115,635.90 : x
  2. Step 2: Convert to fraction form
    151,508.16/209,004.36 = 115,635.90/x
  3. Step 3: Cross multiply
    151,508.16x = 209,004.36 × 115,635.90
  4. Step 4: Simplify right side
    151,508.16x = 24,168,407,272.52
  5. Step 5: Solve for x
    x = 24,168,407,272.52/151,508.16
  6. Step 6: Final answer
    x = 159,518.85

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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.