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Finding the Fourth Proportional to 148,642.46, 205,068.20 and 84,946.08

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Solution

The fourth proportional to 148,642.46, 205,068.20 and 84,946.08 is: 117,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,642.46 : 205,068.20 = 84,946.08 : x
  2. Step 2: Convert to fraction form
    148,642.46/205,068.20 = 84,946.08/x
  3. Step 3: Cross multiply
    148,642.46x = 205,068.20 × 84,946.08
  4. Step 4: Simplify right side
    148,642.46x = 17,419,739,297.93
  5. Step 5: Solve for x
    x = 17,419,739,297.93/148,642.46
  6. Step 6: Final answer
    x = 117,192.22

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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.