Home / 134,940.04-186,230.50-78,348.04

Finding the Fourth Proportional to 134,940.04, 186,230.50 and 78,348.04

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Solution

The fourth proportional to 134,940.04, 186,230.50 and 78,348.04 is: 108,127.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,940.04 : 186,230.50 = 78,348.04 : x
  2. Step 2: Convert to fraction form
    134,940.04/186,230.50 = 78,348.04/x
  3. Step 3: Cross multiply
    134,940.04x = 186,230.50 × 78,348.04
  4. Step 4: Simplify right side
    134,940.04x = 14,590,794,663.22
  5. Step 5: Solve for x
    x = 14,590,794,663.22/134,940.04
  6. Step 6: Final answer
    x = 108,127.99

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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.