Home / 165,543.52-228,445.68-90,090.40

Finding the Fourth Proportional to 165,543.52, 228,445.68 and 90,090.40

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Solution

The fourth proportional to 165,543.52, 228,445.68 and 90,090.40 is: 124,322.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,543.52 : 228,445.68 = 90,090.40 : x
  2. Step 2: Convert to fraction form
    165,543.52/228,445.68 = 90,090.40/x
  3. Step 3: Cross multiply
    165,543.52x = 228,445.68 × 90,090.40
  4. Step 4: Simplify right side
    165,543.52x = 20,580,762,689.47
  5. Step 5: Solve for x
    x = 20,580,762,689.47/165,543.52
  6. Step 6: Final answer
    x = 124,322.37

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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.