Home / 135,173.61-186,532.02-74,740.62

Finding the Fourth Proportional to 135,173.61, 186,532.02 and 74,740.62

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Solution

The fourth proportional to 135,173.61, 186,532.02 and 74,740.62 is: 103,137.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,173.61 : 186,532.02 = 74,740.62 : x
  2. Step 2: Convert to fraction form
    135,173.61/186,532.02 = 74,740.62/x
  3. Step 3: Cross multiply
    135,173.61x = 186,532.02 × 74,740.62
  4. Step 4: Simplify right side
    135,173.61x = 13,941,518,824.65
  5. Step 5: Solve for x
    x = 13,941,518,824.65/135,173.61
  6. Step 6: Final answer
    x = 103,137.87

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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.