Home / 135,395.60-186,847.41-74,967.30

Finding the Fourth Proportional to 135,395.60, 186,847.41 and 74,967.30

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Solution

The fourth proportional to 135,395.60, 186,847.41 and 74,967.30 is: 103,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,395.60 : 186,847.41 = 74,967.30 : x
  2. Step 2: Convert to fraction form
    135,395.60/186,847.41 = 74,967.30/x
  3. Step 3: Cross multiply
    135,395.60x = 186,847.41 × 74,967.30
  4. Step 4: Simplify right side
    135,395.60x = 14,007,445,839.69
  5. Step 5: Solve for x
    x = 14,007,445,839.69/135,395.60
  6. Step 6: Final answer
    x = 103,455.70

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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.