Home / 136,102.77-187,821.65-75,671.51

Finding the Fourth Proportional to 136,102.77, 187,821.65 and 75,671.51

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Solution

The fourth proportional to 136,102.77, 187,821.65 and 75,671.51 is: 104,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,102.77 : 187,821.65 = 75,671.51 : x
  2. Step 2: Convert to fraction form
    136,102.77/187,821.65 = 75,671.51/x
  3. Step 3: Cross multiply
    136,102.77x = 187,821.65 × 75,671.51
  4. Step 4: Simplify right side
    136,102.77x = 14,212,747,116.26
  5. Step 5: Solve for x
    x = 14,212,747,116.26/136,102.77
  6. Step 6: Final answer
    x = 104,426.58

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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.