Home / 135,144.07-186,482.60-74,706.52

Finding the Fourth Proportional to 135,144.07, 186,482.60 and 74,706.52

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Solution

The fourth proportional to 135,144.07, 186,482.60 and 74,706.52 is: 103,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,144.07 : 186,482.60 = 74,706.52 : x
  2. Step 2: Convert to fraction form
    135,144.07/186,482.60 = 74,706.52/x
  3. Step 3: Cross multiply
    135,144.07x = 186,482.60 × 74,706.52
  4. Step 4: Simplify right side
    135,144.07x = 13,931,464,780.61
  5. Step 5: Solve for x
    x = 13,931,464,780.61/135,144.07
  6. Step 6: Final answer
    x = 103,086.03

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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.