Home / 140,068.99-193,287.45-79,631.29

Finding the Fourth Proportional to 140,068.99, 193,287.45 and 79,631.29

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Solution

The fourth proportional to 140,068.99, 193,287.45 and 79,631.29 is: 109,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,068.99 : 193,287.45 = 79,631.29 : x
  2. Step 2: Convert to fraction form
    140,068.99/193,287.45 = 79,631.29/x
  3. Step 3: Cross multiply
    140,068.99x = 193,287.45 × 79,631.29
  4. Step 4: Simplify right side
    140,068.99x = 15,391,728,984.31
  5. Step 5: Solve for x
    x = 15,391,728,984.31/140,068.99
  6. Step 6: Final answer
    x = 109,886.77

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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.