Home / 147,823.13-203,995.89-79,840.10

Finding the Fourth Proportional to 147,823.13, 203,995.89 and 79,840.10

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Solution

The fourth proportional to 147,823.13, 203,995.89 and 79,840.10 is: 110,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,823.13 : 203,995.89 = 79,840.10 : x
  2. Step 2: Convert to fraction form
    147,823.13/203,995.89 = 79,840.10/x
  3. Step 3: Cross multiply
    147,823.13x = 203,995.89 × 79,840.10
  4. Step 4: Simplify right side
    147,823.13x = 16,287,051,237.21
  5. Step 5: Solve for x
    x = 16,287,051,237.21/147,823.13
  6. Step 6: Final answer
    x = 110,179.32

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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.