Home / 165,911.64-228,959.10-90,461.40

Finding the Fourth Proportional to 165,911.64, 228,959.10 and 90,461.40

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Solution

The fourth proportional to 165,911.64, 228,959.10 and 90,461.40 is: 124,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,911.64 : 228,959.10 = 90,461.40 : x
  2. Step 2: Convert to fraction form
    165,911.64/228,959.10 = 90,461.40/x
  3. Step 3: Cross multiply
    165,911.64x = 228,959.10 × 90,461.40
  4. Step 4: Simplify right side
    165,911.64x = 20,711,960,728.74
  5. Step 5: Solve for x
    x = 20,711,960,728.74/165,911.64
  6. Step 6: Final answer
    x = 124,837.30

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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.