Home / 135,209.75-186,573.04-74,772.16

Finding the Fourth Proportional to 135,209.75, 186,573.04 and 74,772.16

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Solution

The fourth proportional to 135,209.75, 186,573.04 and 74,772.16 is: 103,176.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,209.75 : 186,573.04 = 74,772.16 : x
  2. Step 2: Convert to fraction form
    135,209.75/186,573.04 = 74,772.16/x
  3. Step 3: Cross multiply
    135,209.75x = 186,573.04 × 74,772.16
  4. Step 4: Simplify right side
    135,209.75x = 13,950,468,545.20
  5. Step 5: Solve for x
    x = 13,950,468,545.20/135,209.75
  6. Step 6: Final answer
    x = 103,176.50

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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.