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Finding the Fourth Proportional to 146,643, 202,367.88 and 79,575

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Solution

The fourth proportional to 146,643, 202,367.88 and 79,575 is: 109,813.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,643 : 202,367.88 = 79,575 : x
  2. Step 2: Convert to fraction form
    146,643/202,367.88 = 79,575/x
  3. Step 3: Cross multiply
    146,643x = 202,367.88 × 79,575
  4. Step 4: Simplify right side
    146,643x = 16,103,424,051
  5. Step 5: Solve for x
    x = 16,103,424,051/146,643
  6. Step 6: Final answer
    x = 109,813.79

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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.