Home / 165,509.28-228,401.76-90,058.08

Finding the Fourth Proportional to 165,509.28, 228,401.76 and 90,058.08

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Solution

The fourth proportional to 165,509.28, 228,401.76 and 90,058.08 is: 124,279.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,509.28 : 228,401.76 = 90,058.08 : x
  2. Step 2: Convert to fraction form
    165,509.28/228,401.76 = 90,058.08/x
  3. Step 3: Cross multiply
    165,509.28x = 228,401.76 × 90,058.08
  4. Step 4: Simplify right side
    165,509.28x = 20,569,423,974.22
  5. Step 5: Solve for x
    x = 20,569,423,974.22/165,509.28
  6. Step 6: Final answer
    x = 124,279.58

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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.