Home / 103,632.40-143,012.92-61,193.64

Finding the Fourth Proportional to 103,632.40, 143,012.92 and 61,193.64

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Solution

The fourth proportional to 103,632.40, 143,012.92 and 61,193.64 is: 84,447.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,632.40 : 143,012.92 = 61,193.64 : x
  2. Step 2: Convert to fraction form
    103,632.40/143,012.92 = 61,193.64/x
  3. Step 3: Cross multiply
    103,632.40x = 143,012.92 × 61,193.64
  4. Step 4: Simplify right side
    103,632.40x = 8,751,481,141.83
  5. Step 5: Solve for x
    x = 8,751,481,141.83/103,632.40
  6. Step 6: Final answer
    x = 84,447.35

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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.