Home / 109,122.90-163,636.62-55,054.32

Finding the Fourth Proportional to 109,122.90, 163,636.62 and 55,054.32

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Solution

The fourth proportional to 109,122.90, 163,636.62 and 55,054.32 is: 82,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,122.90 : 163,636.62 = 55,054.32 : x
  2. Step 2: Convert to fraction form
    109,122.90/163,636.62 = 55,054.32/x
  3. Step 3: Cross multiply
    109,122.90x = 163,636.62 × 55,054.32
  4. Step 4: Simplify right side
    109,122.90x = 9,008,902,841.20
  5. Step 5: Solve for x
    x = 9,008,902,841.20/109,122.90
  6. Step 6: Final answer
    x = 82,557.40

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1.5x scale

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.