Home / 165,416.50-228,275.04-89,965

Finding the Fourth Proportional to 165,416.50, 228,275.04 and 89,965

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Solution

The fourth proportional to 165,416.50, 228,275.04 and 89,965 is: 124,151.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,416.50 : 228,275.04 = 89,965 : x
  2. Step 2: Convert to fraction form
    165,416.50/228,275.04 = 89,965/x
  3. Step 3: Cross multiply
    165,416.50x = 228,275.04 × 89,965
  4. Step 4: Simplify right side
    165,416.50x = 20,536,763,973.60
  5. Step 5: Solve for x
    x = 20,536,763,973.60/165,416.50
  6. Step 6: Final answer
    x = 124,151.85

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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.