Home / 102,345.64-153,539.16-43,181.44

Finding the Fourth Proportional to 102,345.64, 153,539.16 and 43,181.44

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Solution

The fourth proportional to 102,345.64, 153,539.16 and 43,181.44 is: 64,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,345.64 : 153,539.16 = 43,181.44 : x
  2. Step 2: Convert to fraction form
    102,345.64/153,539.16 = 43,181.44/x
  3. Step 3: Cross multiply
    102,345.64x = 153,539.16 × 43,181.44
  4. Step 4: Simplify right side
    102,345.64x = 6,630,042,025.19
  5. Step 5: Solve for x
    x = 6,630,042,025.19/102,345.64
  6. Step 6: Final answer
    x = 64,780.89

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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.