Home / 165,567.90-228,472.47-90,114.78

Finding the Fourth Proportional to 165,567.90, 228,472.47 and 90,114.78

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Solution

The fourth proportional to 165,567.90, 228,472.47 and 90,114.78 is: 124,352.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,567.90 : 228,472.47 = 90,114.78 : x
  2. Step 2: Convert to fraction form
    165,567.90/228,472.47 = 90,114.78/x
  3. Step 3: Cross multiply
    165,567.90x = 228,472.47 × 90,114.78
  4. Step 4: Simplify right side
    165,567.90x = 20,588,746,370.11
  5. Step 5: Solve for x
    x = 20,588,746,370.11/165,567.90
  6. Step 6: Final answer
    x = 124,352.28

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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.