Home / 165,321.60-228,137.46-89,870.10

Finding the Fourth Proportional to 165,321.60, 228,137.46 and 89,870.10

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Solution

The fourth proportional to 165,321.60, 228,137.46 and 89,870.10 is: 124,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,321.60 : 228,137.46 = 89,870.10 : x
  2. Step 2: Convert to fraction form
    165,321.60/228,137.46 = 89,870.10/x
  3. Step 3: Cross multiply
    165,321.60x = 228,137.46 × 89,870.10
  4. Step 4: Simplify right side
    165,321.60x = 20,502,736,343.95
  5. Step 5: Solve for x
    x = 20,502,736,343.95/165,321.60
  6. Step 6: Final answer
    x = 124,017.29

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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.