Home / 103,637.40-143,019.82-61,198.64

Finding the Fourth Proportional to 103,637.40, 143,019.82 and 61,198.64

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Solution

The fourth proportional to 103,637.40, 143,019.82 and 61,198.64 is: 84,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637.40 : 143,019.82 = 61,198.64 : x
  2. Step 2: Convert to fraction form
    103,637.40/143,019.82 = 61,198.64/x
  3. Step 3: Cross multiply
    103,637.40x = 143,019.82 × 61,198.64
  4. Step 4: Simplify right side
    103,637.40x = 8,752,618,477.04
  5. Step 5: Solve for x
    x = 8,752,618,477.04/103,637.40
  6. Step 6: Final answer
    x = 84,454.25

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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.