Home / 143,435.02-197,937.51-79,771.45

Finding the Fourth Proportional to 143,435.02, 197,937.51 and 79,771.45

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Solution

The fourth proportional to 143,435.02, 197,937.51 and 79,771.45 is: 110,083.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,435.02 : 197,937.51 = 79,771.45 : x
  2. Step 2: Convert to fraction form
    143,435.02/197,937.51 = 79,771.45/x
  3. Step 3: Cross multiply
    143,435.02x = 197,937.51 × 79,771.45
  4. Step 4: Simplify right side
    143,435.02x = 15,789,762,182.09
  5. Step 5: Solve for x
    x = 15,789,762,182.09/143,435.02
  6. Step 6: Final answer
    x = 110,083.03

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1.5x scale

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.