Home / 143,466.12-197,970.98-83,040.53

Finding the Fourth Proportional to 143,466.12, 197,970.98 and 83,040.53

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Solution

The fourth proportional to 143,466.12, 197,970.98 and 83,040.53 is: 114,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,466.12 : 197,970.98 = 83,040.53 : x
  2. Step 2: Convert to fraction form
    143,466.12/197,970.98 = 83,040.53/x
  3. Step 3: Cross multiply
    143,466.12x = 197,970.98 × 83,040.53
  4. Step 4: Simplify right side
    143,466.12x = 16,439,613,698.76
  5. Step 5: Solve for x
    x = 16,439,613,698.76/143,466.12
  6. Step 6: Final answer
    x = 114,588.82

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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.