Home / 135,915.60-187,569.77-75,486.51

Finding the Fourth Proportional to 135,915.60, 187,569.77 and 75,486.51

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Solution

The fourth proportional to 135,915.60, 187,569.77 and 75,486.51 is: 104,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,915.60 : 187,569.77 = 75,486.51 : x
  2. Step 2: Convert to fraction form
    135,915.60/187,569.77 = 75,486.51/x
  3. Step 3: Cross multiply
    135,915.60x = 187,569.77 × 75,486.51
  4. Step 4: Simplify right side
    135,915.60x = 14,158,986,941.37
  5. Step 5: Solve for x
    x = 14,158,986,941.37/135,915.60
  6. Step 6: Final answer
    x = 104,174.85

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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.