Home / 143,383.02-197,867.47-79,720.26

Finding the Fourth Proportional to 143,383.02, 197,867.47 and 79,720.26

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Solution

The fourth proportional to 143,383.02, 197,867.47 and 79,720.26 is: 110,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,383.02 : 197,867.47 = 79,720.26 : x
  2. Step 2: Convert to fraction form
    143,383.02/197,867.47 = 79,720.26/x
  3. Step 3: Cross multiply
    143,383.02x = 197,867.47 × 79,720.26
  4. Step 4: Simplify right side
    143,383.02x = 15,774,046,153.94
  5. Step 5: Solve for x
    x = 15,774,046,153.94/143,383.02
  6. Step 6: Final answer
    x = 110,013.35

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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.