Home / 135,151.55-186,494.85-74,712.45

Finding the Fourth Proportional to 135,151.55, 186,494.85 and 74,712.45

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Solution

The fourth proportional to 135,151.55, 186,494.85 and 74,712.45 is: 103,095.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,151.55 : 186,494.85 = 74,712.45 : x
  2. Step 2: Convert to fraction form
    135,151.55/186,494.85 = 74,712.45/x
  3. Step 3: Cross multiply
    135,151.55x = 186,494.85 × 74,712.45
  4. Step 4: Simplify right side
    135,151.55x = 13,933,487,155.88
  5. Step 5: Solve for x
    x = 13,933,487,155.88/135,151.55
  6. Step 6: Final answer
    x = 103,095.29

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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.