Home / 103,813.16-143,262.15-56,066.51

Finding the Fourth Proportional to 103,813.16, 143,262.15 and 56,066.51

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Solution

The fourth proportional to 103,813.16, 143,262.15 and 56,066.51 is: 77,371.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,813.16 : 143,262.15 = 56,066.51 : x
  2. Step 2: Convert to fraction form
    103,813.16/143,262.15 = 56,066.51/x
  3. Step 3: Cross multiply
    103,813.16x = 143,262.15 × 56,066.51
  4. Step 4: Simplify right side
    103,813.16x = 8,032,208,765.60
  5. Step 5: Solve for x
    x = 8,032,208,765.60/103,813.16
  6. Step 6: Final answer
    x = 77,371.78

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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.