Home / 136,013.61-187,698.69-74,759.34

Finding the Fourth Proportional to 136,013.61, 187,698.69 and 74,759.34

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Solution

The fourth proportional to 136,013.61, 187,698.69 and 74,759.34 is: 103,167.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,013.61 : 187,698.69 = 74,759.34 : x
  2. Step 2: Convert to fraction form
    136,013.61/187,698.69 = 74,759.34/x
  3. Step 3: Cross multiply
    136,013.61x = 187,698.69 × 74,759.34
  4. Step 4: Simplify right side
    136,013.61x = 14,032,230,183.26
  5. Step 5: Solve for x
    x = 14,032,230,183.26/136,013.61
  6. Step 6: Final answer
    x = 103,167.84

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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.