Home / 165,622.08-228,564-90,173.28

Finding the Fourth Proportional to 165,622.08, 228,564 and 90,173.28

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Solution

The fourth proportional to 165,622.08, 228,564 and 90,173.28 is: 124,442.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,622.08 : 228,564 = 90,173.28 : x
  2. Step 2: Convert to fraction form
    165,622.08/228,564 = 90,173.28/x
  3. Step 3: Cross multiply
    165,622.08x = 228,564 × 90,173.28
  4. Step 4: Simplify right side
    165,622.08x = 20,610,365,569.92
  5. Step 5: Solve for x
    x = 20,610,365,569.92/165,622.08
  6. Step 6: Final answer
    x = 124,442.14

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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.