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Finding the Fourth Proportional to 105,521, 158,320.38 and 55,599.08

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Solution

The fourth proportional to 105,521, 158,320.38 and 55,599.08 is: 83,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,521 : 158,320.38 = 55,599.08 : x
  2. Step 2: Convert to fraction form
    105,521/158,320.38 = 55,599.08/x
  3. Step 3: Cross multiply
    105,521x = 158,320.38 × 55,599.08
  4. Step 4: Simplify right side
    105,521x = 8,802,467,473.25
  5. Step 5: Solve for x
    x = 8,802,467,473.25/105,521
  6. Step 6: Final answer
    x = 83,419.11

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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.