Home / 135,184.80-186,567.12-74,769.60

Finding the Fourth Proportional to 135,184.80, 186,567.12 and 74,769.60

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Solution

The fourth proportional to 135,184.80, 186,567.12 and 74,769.60 is: 103,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,184.80 : 186,567.12 = 74,769.60 : x
  2. Step 2: Convert to fraction form
    135,184.80/186,567.12 = 74,769.60/x
  3. Step 3: Cross multiply
    135,184.80x = 186,567.12 × 74,769.60
  4. Step 4: Simplify right side
    135,184.80x = 13,949,548,935.55
  5. Step 5: Solve for x
    x = 13,949,548,935.55/135,184.80
  6. Step 6: Final answer
    x = 103,188.74

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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.