Home / 165,909.45-228,955.27-90,457.95

Finding the Fourth Proportional to 165,909.45, 228,955.27 and 90,457.95

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Solution

The fourth proportional to 165,909.45, 228,955.27 and 90,457.95 is: 124,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,909.45 : 228,955.27 = 90,457.95 : x
  2. Step 2: Convert to fraction form
    165,909.45/228,955.27 = 90,457.95/x
  3. Step 3: Cross multiply
    165,909.45x = 228,955.27 × 90,457.95
  4. Step 4: Simplify right side
    165,909.45x = 20,710,824,365.90
  5. Step 5: Solve for x
    x = 20,710,824,365.90/165,909.45
  6. Step 6: Final answer
    x = 124,832.10

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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.