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Finding the Fourth Proportional to 103,126.80, 154,805.40 and 96,358.80

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Solution

The fourth proportional to 103,126.80, 154,805.40 and 96,358.80 is: 144,645.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,126.80 : 154,805.40 = 96,358.80 : x
  2. Step 2: Convert to fraction form
    103,126.80/154,805.40 = 96,358.80/x
  3. Step 3: Cross multiply
    103,126.80x = 154,805.40 × 96,358.80
  4. Step 4: Simplify right side
    103,126.80x = 14,916,862,577.52
  5. Step 5: Solve for x
    x = 14,916,862,577.52/103,126.80
  6. Step 6: Final answer
    x = 144,645.84

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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.