Home / 135,234.02-186,620.65-74,804.62

Finding the Fourth Proportional to 135,234.02, 186,620.65 and 74,804.62

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Solution

The fourth proportional to 135,234.02, 186,620.65 and 74,804.62 is: 103,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,234.02 : 186,620.65 = 74,804.62 : x
  2. Step 2: Convert to fraction form
    135,234.02/186,620.65 = 74,804.62/x
  3. Step 3: Cross multiply
    135,234.02x = 186,620.65 × 74,804.62
  4. Step 4: Simplify right side
    135,234.02x = 13,960,086,807.40
  5. Step 5: Solve for x
    x = 13,960,086,807.40/135,234.02
  6. Step 6: Final answer
    x = 103,229.10

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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.