Home / 103,744.29-143,115.41-63,387.73

Finding the Fourth Proportional to 103,744.29, 143,115.41 and 63,387.73

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Solution

The fourth proportional to 103,744.29, 143,115.41 and 63,387.73 is: 87,443.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,744.29 : 143,115.41 = 63,387.73 : x
  2. Step 2: Convert to fraction form
    103,744.29/143,115.41 = 63,387.73/x
  3. Step 3: Cross multiply
    103,744.29x = 143,115.41 × 63,387.73
  4. Step 4: Simplify right side
    103,744.29x = 9,071,759,935.40
  5. Step 5: Solve for x
    x = 9,071,759,935.40/103,744.29
  6. Step 6: Final answer
    x = 87,443.46

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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.