Home / 103,625.40-143,013.42-63,357.24

Finding the Fourth Proportional to 103,625.40, 143,013.42 and 63,357.24

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Solution

The fourth proportional to 103,625.40, 143,013.42 and 63,357.24 is: 87,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.40 : 143,013.42 = 63,357.24 : x
  2. Step 2: Convert to fraction form
    103,625.40/143,013.42 = 63,357.24/x
  3. Step 3: Cross multiply
    103,625.40x = 143,013.42 × 63,357.24
  4. Step 4: Simplify right side
    103,625.40x = 9,060,935,574.16
  5. Step 5: Solve for x
    x = 9,060,935,574.16/103,625.40
  6. Step 6: Final answer
    x = 87,439.33

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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.