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Finding the Fourth Proportional to 102,514.60, 153,480.30 and 90,850.60

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Solution

The fourth proportional to 102,514.60, 153,480.30 and 90,850.60 is: 136,017.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,514.60 : 153,480.30 = 90,850.60 : x
  2. Step 2: Convert to fraction form
    102,514.60/153,480.30 = 90,850.60/x
  3. Step 3: Cross multiply
    102,514.60x = 153,480.30 × 90,850.60
  4. Step 4: Simplify right side
    102,514.60x = 13,943,777,343.18
  5. Step 5: Solve for x
    x = 13,943,777,343.18/102,514.60
  6. Step 6: Final answer
    x = 136,017.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.